# Tromsø

Tromsø, officially the Tromsø Municipality, is a municipality in Troms county, Norway. The administrative centre of the municipality is the city of Tromsø. Other notable settlements in the municipality include the villages of Bjerkaker, Ersfjordbotn, Jøvika, Kaldfjord, Kjosen, Kroken, Kvaløysletta, Lakselvbukt, Melvika, Movik, Oldervik, Sandneshamn, Sjursnes, Sommarøy, and Tromsdalen.
Tromsø lies in Northern Norway. The 2,521 km$^2$ (973 sq mi) municipality is the 21st largest by area out of the 357 municipalities in Norway. Tromsø is the 12th-most populous municipality in Norway with a population of 78,745. The municipality's population density is 31.2 inhabitants per square kilometre (81/sq mi) and its population has increased by 10% over the previous 10-year period. It is the largest urban area in Northern Norway and the third largest north of the Arctic Circle anywhere in the world (following Murmansk and Norilsk). The center of the city of Tromsø is located on the island of Tromsøya, but the urban area also encompasses part of the nearby mainland and part of the island Kvaløya. Tromsø is 350 km (217 mi) north of the Arctic Circle. Tromsøya is connected to the mainland by the Tromsø Bridge and the Tromsøysund Tunnel, and to the island of Kvaløya by the Sandnessund Bridge.
The municipality is milder than most settlements on the same latitude, due to the effect of the westerlies reaching this far north, as well as the North Atlantic Drift, a branch of the Gulf Stream. Tromsø's latitude of just below 70°N renders annual midnight suns and polar nights depending on the season.
The city centre contains the highest number of old wooden houses in Northern Norway, the oldest dating from 1789. Tromsø is a cultural hub for the region, with several festivals taking place in the summer. Due to its location, many countries had consulates or missions in Tromsø in the 1990s.

## Names and etymology

The city of Tromsø is named after the island of Tromsøya, on which it stands. The last element of the city's name comes from "island" (Norwegian: øy, Danish: ø), but the etymology of the first element is uncertain. Several theories exist. One theory holds "Troms-" is derived from the old (uncompounded) name of the island (Old Norse: Trums). Several islands and rivers in Norway have the name Tromsa, and the names of these are probably derived from the word straumr, which means "(strong) current". (The original form must then have been Strums, for the missing s, see Indo-European s-mobile.) Another theory holds that Tromsøya was originally called Lille Tromsøya (Little Tromsøya) because of its proximity to the much bigger island today called Kvaløya, that according to this theory, was earlier called "Store Tromsøya" due to a characteristic mountain known as Tromma (the Drum). The mountain's name in Sámi, Rumbbučohkka, is identical in meaning, and it is said to have been a sacred mountain for the Sámi in pre-Christian times.
The Sámi name of the island, Romsa, is assumed to be a loan from Norse, but according to the phonetical rules of the Sami language, the frontal t has disappeared from the name. However, an alternative form - Tromsa - is in informal use. A theory holds that the Norwegian name of Tromsø derives from the Sámi name, though this theory lacks an explanation for the meaning of Romsa. A common misunderstanding is that Tromsø's Sámi name is Romssa with a double "s". This, however, is the accusative and genitive form of the noun used when, for example, writing "Tromsø Municipality" (Romssa suohkan). In Finnish, however, the word is written with a double "s": Tromssa.

## History

The area has been inhabited since the end of the last ice age. Archeological excavations in Tønsvika, have turned up artefacts and remains of buildings estimated to be 9,000 to 10,000 years old.

### Middle Ages: a fortress on the frontier

The area's rich Norse and Sámi heritage is well documented. The Norse chieftain Ohthere, who lived during the 890s, is assumed to have inhabited the southernmost reaches of today's Tromsø municipality. He described himself as living "furthest to the North of all Norwegians" with areas north of this being populated by Sámi. An Icelandic source (Rimbegla) from the 12th century also describes the fjord Malangen in the south of today's Tromsø municipality as a border between Norse and Sámi coastal settlements during that part of the Middle Ages, however, Archaeological finds show that the Vikings have been present on the main island itself. In a burial/settlement near today's airport, a sword and other combat tools have been found, as well as household tools typical for the Norwegians In addition, one of Northern Norway's largest Viking treasures is found on the island itself. There has also been extensive Sámi settlement on the coast south of this 'border' as well as scattered Norse settlements north of Malangen—for example, both Sámi and Norse Iron Age (0–1050 AD) remains have been found on southern Kvaløya.
The first church on the island of Tromsøya was erected in 1252. Ecclesia Sanctae Mariae de Trums juxta paganos ("The Church of Saint Mary in Troms near the Heathens"—the nominal "heathens" being the Sámi), was built during the reign of King Hákon Hákonarson. At the time, it was the northernmost church in the world. Around the same time a turf rampart was built to protect the area against raids from Karelia and Russia.
Tromsø was not just a Norwegian outpost in an area mainly populated by the Sámi, but also a frontier city towards Russia; the Novgorod state had the right to tax the Sámi along the coast to Lyngstuva and inland to the Skibotn River or possibly the Målselv River, whereas Norway was allowed to tax areas east to - and including - the Kola Peninsula. During the next five hundred years Norway's border with Russia and the limits of Norwegian settlement would be pushed eastwards to Sør-Varanger Municipality, making Tromsø lose its character as a "frontier town".

### 1700s and 1800s: the "Paris of the north"

During the 17th century, while Denmark–Norway was solidifying its claim to the northern coast of Scandinavia, the redoubt Skansen was built. Despite only being home to around 80 people, Tromsø was issued its city charter on 20 June 1794 by King Christian VII. This coincided with, and was a direct consequence of, the abolition of the city of Bergen's centuries-old monopoly on the trade in cod. Tromsø quickly rose in importance. The Diocese of Hålogaland was created in 1804, with the first bishop being Mathias Bonsak Krogh. The city was established as a municipality 1 January 1838 (see formannskapsdistrikt law).
Arctic hunting, from Novaya Zemlya to Canada, started up around 1820. By 1850, Tromsø was the major centre of Arctic hunting, overtaking the former centre of Hammerfest. Tromsø had trading contacts with both Central Europe and Russia (specifically Arkhangelsk) during this time, the latter of which resulted in the development of the pidgin language Russenorsk.
In 1848, the teacher training college was also moved from Trondenes Municipality (near current-day Harstad) to Tromsø, with part of its mission being to educate Sámi scholars - there was a quota ensuring that Sámi gained access. The teacher college was followed by the Tromsø Museum in 1872, and the Mack Brewery in 1877.
During the 19th century, Tromsø became known as the "Paris of the North". How this nickname came into being is uncertain, but the reason is generally assumed to be that people in Tromsø appeared far more sophisticated than visitors from the south typically expected.

### Early 1900s: exploration and war

By the end of the 19th century, Tromsø had become a major Arctic trade centre from which many Arctic expeditions originated. Explorers like Roald Amundsen, Umberto Nobile and Fridtjof Nansen made use of the know-how in Tromsø on the conditions in the Arctic, and often recruited their crews in the city. The Northern lights observatory was founded in 1927.
When Germany invaded Norway in 1940, Tromsø served briefly as the seat of the Norwegian government. General Carl Gustav Fleischer arrived in Tromsø on 10 April 1940 after flying in terrible conditions from Vadsø. From Tromsø he issued orders for total civilian and military mobilisation and declared Northern Norway a theatre of war. Fleischer's strategic plan was to first wipe out the German forces at Narvik and then transfer his division to Nordland to meet a German advance from Trøndelag. The Germans eventually captured all of Norway, after allied support had been withdrawn, although they encountered fierce resistance from the Finnmark-based Alta Battalion at Narvik. Tromsø escaped the war unscathed, although the German battleship Tirpitz was sunk by RAF bombers during Operation Catechism off the Tromsøy island on 12 November 1944, killing close to 1,000 German sailors.
At the end of the war, the city received thousands of refugees from Finnmark county and the northern areas of Troms - areas which had been devastated by German forces using scorched earth tactics in expectation of a Red Army offensive.

### Late 1900s – today: rapid expansion

Expansion after World War II has been rapid. The rural Tromsøysund Municipality and Ullsfjord Municipality, and most of Hillesøy Municipality, were merged with Tromsø on 1 January 1964, creating today's Tromsø municipality and almost tripling Tromsø's population - from 12,430 to 32,664. In addition, the population growth has been strong, with at times more than 1,000 new Tromsøværinger (residents of Tromsø) annually. The population of Tromsø municipality today is 68,239, and the urban area, Norway's ninth most populous, is home to 58,486 people. This excludes most of the city's students, however, who often do not change their address when moving to Tromsø.
A major development was the opening of Tromsø Airport in 1964, situated on the main island, and in 1972 the University of Tromsø was opened, at the time one of four universities in Norway and the only one serving the northern half of the country. A local teacher's college and museum were eventually incorporated into the university. The Norwegian Polar Institute was moved to Tromsø from Oslo in 1998. More recently, the university has expanded further through two mergers, first with University College Tromsø in 2009 and then with University College Finnmark in 2013.

### Municipal history

The city of Tromsø was established as an independent municipality on 1 January 1838 (see formannskapsdistrikt law). The city was completely surrounded by the Tromsøe landdistrikt (the rural municipality of Tromsø / later renamed Tromsøysund Municipality), but they were governed separately. As the city grew in size, areas were added to the city from the rural district.
On 1 January 1861, an area of Tromsøysund Municipality (population: 110) was transferred to the city of Tromsø. On 1 January 1873, an unpopulated area of Tromsøysund Municipality was transferred to the city. On 1 July 1915, another area of Tromsøysund Municipality (population: 512) was merged into the city of Tromsø. On 1 January 1955, the Bjerkaker area on Tromsøya (population: 1,583) was transferred from Tromsøysund Municipality to the city of Tromsø.
During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, the city of Tromsø (population: 12,602), Tromsøysund Municipality (population: 16,727), most of Ullsfjord Municipality except for the Svendsby area (population: 2,019), and most of Hillesøy Municipality except for the parts on the island of Senja (population: 1,316) were all merged to form a new, larger Tromsø Municipality.
On 1 January 2020, the municipality became a part of the newly created Troms og Finnmark county, which replaced the old Troms county. On 1 January 2024, Troms og Finnmark county was divided and the municipality once again became part of Troms county.

## Coat of arms

The coat of arms (current version) was granted on 22 July 1983, although a variation of these arms has been in use since 1870. The official blazon is "Azure, a reindeer trippant argent" (Norwegian: I blått en gående sølv rein). This means the arms have a blue field (background) and the charge is a reindeer. The reindeer has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used. It is often surmounted by a mural crown with five or four turrets. The municipal authority currently uses a stylised rendering drawn by Hallvard Trætteberg (1898–1987) and adopted by royal resolution on 24 September 1941. The idea for a coat of arms for Tromsø was presented by A. T. Kaltenborn in 1855 and the coat of arms was first used in connection with the Industry and Crafts Exhibition in Tromsø in 1870. Over time, the background colour has been changed between blue and red. At one point it also used a natural landscape in the background. Although reindeer played little or no role in the city, Tromsø was the administrative center of the vast surrounding areas in the county were reindeer herding was common in this part of Northern Norway.

## Geography

Tromsø is the 12th largest municipality in Norway with a population of 78,745. The city is home to the world's northernmost university and also houses the northernmost botanical garden and planetarium.
The city centre is located on the east side of the Tromsøya island — over 300 kilometres (190 mi) north of the Arctic Circle at 69°40′33″N 18°55′10″E﻿ / ﻿69.67583°N 18.91944°E﻿ / 69.67583; 18.91944. Suburban areas include Kroken, Tromsdalen (on the mainland, east of Tromsøya), the rest of the Tromsøya island, and the eastern part of the large Kvaløya, west of the Tromsøya island. The Tromsø Bridge and Tromsøysund Tunnel both cross the Tromsøysundet strait connecting the mainland with Tromsøya by road. On the western side of the city, the Sandnessund Bridge connects Tromsøya island with Kvaløya island.
The highest point in the municipality is the 1,830.7-metre (6,006 ft) tall mountain Jiehkkevárri. There are also many other tall mountains within the municipality including Hamperokken, Store Blåmannen, Store Fornestinden, and Tromsdalstinden. The Lyngen Alps mountain range lies along the Tromsø-Lyngen municipal border. There are many islands within the municipality of Tromsø including Hillesøya, Kvaløya, Rebbenesøya, Ringvassøya, Store Sommarøya, and Tromsøya. There are also several fjords that are located in Tromsø including the Balsfjorden, Kaldfjorden, Malangen, and Ullsfjorden.

### Climate

Tromsø experiences a subarctic climate (Köppen climate classification Dfc, Trewartha Eolo) as winter temperatures are just cold enough to qualify and the summer season is short. However, precipitation amount and pattern, with maximum precipitation in autumn and winter, as well as lack of permafrost, are atypical for subarctic areas and more typical for oceanic climates. Owing to the ice-free Norwegian Sea and the westerlies bringing the mild air ashore, winter temperatures in Tromsø are moderate and extremely mild for the latitude.
Summers are rather cool, sometimes cloudy and rainy, and sometimes sunny, often with large variations from year to year and from month to month, giving a completely different experience, all depending on the weather pattern. This variability is also visible in sunhours, which has been recorded since 1961: In July 1980 Tromsø recorded 430 sunhours, which is still the national record for sunniest month ever. However, July 1989 only recorded 91 sunhours. June has ranged from just 58 sunhours in June 2018 to 395 sunhours in June 1971 and also June 2002. Tromsø has also recorded the sunniest spring month in Norway with 381 sunhours in May 2013. The highest temperature recorded at the met office 100 m amsl is 30.2 °C (86.4 °F) in July 1972. Tromsø recorded its first "tropical night" with overnight low 20.8 °C (69.4 °F) July 30, 2018.
Tromsø has reputation of accumulating a lot of snow in winter, but on the streets of the city ice often prevails, especially in the first half of the winter. Tromsø's snowfall pattern is quite erratic and varies substantially between different winters. Thaws with rain in the polar night mid-winter are not uncommon, which melts or wets existing snow, often followed by chilly windy Arctic blasts, creating dangerous ice driving and walking conditions. It is common to see Tromsø inhabitants walking with spikes in their shoes and almost all cars use studded tires. The all-time record for snow depth was set on 29 April 1997, when the meteorological station on top of Tromsøya recorded 240 centimetres (94.5 in) of snow on the ground. In an average winter, Tromsø sees 160 days with at least 25 centimetres (10 in) of snow on the ground (1970–2000 average, 100 meters above sea level).
The lowest temperature ever recorded is −18.4 °C (−1.1 °F) in February 1966. That is extremely mild for a location this far north, as it is about the same as the record cold for the U.S. state of Florida — about 40 degrees latitude further south. At the airport the all-time low is −20.1 °C (−4.2 °F) in February 1985. The average date for the last overnight freeze (low below 0 °C (32.0 °F)) in spring is 17 May and average date for first freeze in autumn is 3 October (1981-2010 average) giving a frost-free season of 138 days. The "midnight sun" is above the horizon from 19 May to 27 July (71 days), and the period with continuous night lasts a bit shorter, polar night from 28 November to 14 January (48 days). The sunniest January (1985) recorded just 9 sunhours, while the sunniest February saw 97 sunhours (2018).
Despite mild winters, snowfall can happen almost any time of the year except from July to mid-September; in 2019, snowfall was registered on 29 June.
Outside the city, large areas in the municipality are at some altitude and above the treeline with an alpine tundra climate (ET or ETh). The islands to the west at the outer seaboard are milder in winter like Måsvik, making this part of the municipality a (if the −3.0 °C (26.6 °F) isotherm is used) subpolar oceanic climate (Cfc) zone.
Recent years have seen warming. The recent normal period 1991-2020 shows that the part of the city at low altitude has winters so mild that melting of snow is more likely also in mid-winter; Tromsø-Holt (20 m) coldest month (February) mean is −2.4 °C (27.7 °F); subpolar oceanic if the −3.0 °C (26.6 °F) isotherm is used.
Climate data for Tromsø, 1991–2020 normals, (100 m, extremes 1920–present) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 8.4 (47.1) | 8.2 (46.8) | 9.7 (49.5) | 17.0 (62.6) | 26.6 (79.9) | 29.9 (85.8) | 30.2 (86.4) | 28.4 (83.1) | 23.4 (74.1) | 18.6 (65.5) | 11.9 (53.4) | 9.7 (49.5) | 30.2 (86.4) |
| Mean daily maximum °C (°F) | −1.0 (30.2) | −1.2 (29.8) | 0.6 (33.1) | 4.1 (39.4) | 8.8 (47.8) | 13.0 (55.4) | 16.3 (61.3) | 15.0 (59.0) | 10.9 (51.6) | 5.2 (41.4) | 2.1 (35.8) | 0.3 (32.5) | 6.2 (43.1) |
| Daily mean °C (°F) | −3.0 (26.6) | −3.3 (26.1) | −1.9 (28.6) | 1.2 (34.2) | 5.5 (41.9) | 9.4 (48.9) | 12.3 (54.1) | 11.3 (52.3) | 7.8 (46.0) | 3.1 (37.6) | 0.2 (32.4) | −1.7 (28.9) | 3.4 (38.1) |
| Mean daily minimum °C (°F) | −5.3 (22.5) | −5.6 (21.9) | −4.4 (24.1) | −1.6 (29.1) | 2.4 (36.3) | 6.2 (43.2) | 9.0 (48.2) | 8.3 (46.9) | 5.3 (41.5) | 0.9 (33.6) | −1.9 (28.6) | −3.9 (25.0) | 0.8 (33.4) |
| Record low °C (°F) | −18.3 (−0.9) | −18.4 (−1.1) | −17.0 (1.4) | −14.3 (6.3) | −6.6 (20.1) | −2.5 (27.5) | 0.7 (33.3) | 1.1 (34.0) | −4.3 (24.3) | −9.6 (14.7) | −14.2 (6.4) | −16.8 (1.8) | −18.4 (−1.1) |
| Average precipitation mm (inches) | 108.3 (4.26) | 96.7 (3.81) | 96.7 (3.81) | 71.1 (2.80) | 56.5 (2.22) | 58 (2.3) | 72.5 (2.85) | 88 (3.5) | 111.3 (4.38) | 127.4 (5.02) | 94.4 (3.72) | 109.7 (4.32) | 1,090.6 (42.99) |
| Average precipitation days (≥ 1 mm) | 15.4 | 12.9 | 11.4 | 11.6 | 11.1 | 10.3 | 12.8 | 12.6 | 14.9 | 17.7 | 13.5 | 15.6 | 160.1 |
| Mean monthly sunshine hours | 3 | 36 | 111 | 171 | 215 | 239 | 226 | 164 | 96 | 55 | 8 | 0 | 1,324 |
| Mean daily daylight hours | 1.8 | 7.4 | 11.8 | 16.3 | 22.1 | 24 | 23.6 | 18 | 13.3 | 8.9 | 3.6 | 0 | 12.6 |
| Average ultraviolet index | 0 | 0 | 1 | 2 | 3 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 1 |
| Source 1: Met Norway, The Weather Network, Meteostat.net ||||||||||||||
| Source 2: Weather Atlas (UV index and daylight hours) ||||||||||||||
The western part of the municipality has islands facing the Norwegian sea, like Rebbenesøya with the Måsvik station.
Climate data for Måsvik, Rebbenesøya, Tromsø 1991–2020 (precipitation from Lyfjord, Kvaløya) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Daily mean °C (°F) | −0.2 (31.6) | −0.7 (30.7) | −0.1 (31.8) | 2.3 (36.1) | 5.7 (42.3) | 8.9 (48.0) | 11.8 (53.2) | 11.6 (52.9) | 9.3 (48.7) | 5.3 (41.5) | 2.6 (36.7) | 0.9 (33.6) | 4.8 (40.6) |
| Average precipitation mm (inches) | 104 (4.1) | 78 (3.1) | 76 (3.0) | 76 (3.0) | 47 (1.9) | 58 (2.3) | 69 (2.7) | 91 (3.6) | 114 (4.5) | 121 (4.8) | 93 (3.7) | 89 (3.5) | 1,016 (40.2) |
| Source: Norwegian Meteorological Institute ||||||||||||||
Climate data for Tromsø, 2002–2020 averages & extremes :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 7.2 (45.0) | 6.9 (44.4) | 8.9 (48.0) | 17.0 (62.6) | 26.6 (79.9) | 28.3 (82.9) | 29.7 (85.5) | 26.3 (79.3) | 21.7 (71.1) | 18.6 (65.5) | 11.7 (53.1) | 9.5 (49.1) | 29.7 (85.5) |
| Mean maximum °C (°F) | 5.0 (41.0) | 5.2 (41.4) | 5.6 (42.1) | 11.3 (52.3) | 18.4 (65.1) | 21.3 (70.3) | 24.8 (76.6) | 22.9 (73.2) | 17.7 (63.9) | 12.0 (53.6) | 7.8 (46.0) | 6.4 (43.5) | 25.3 (77.5) |
| Mean daily maximum °C (°F) | −1.8 (28.8) | −1.3 (29.7) | 0.5 (32.9) | 4.7 (40.5) | 9.5 (49.1) | 12.6 (54.7) | 16.5 (61.7) | 15.0 (59.0) | 11.0 (51.8) | 5.4 (41.7) | 1.9 (35.4) | 0.2 (32.4) | 6.2 (43.1) |
| Daily mean °C (°F) | −3.4 (25.9) | −3.1 (26.4) | −1.8 (28.8) | 1.9 (35.4) | 6.3 (43.3) | 9.5 (49.1) | 13.0 (55.4) | 11.9 (53.4) | 8.4 (47.1) | 3.5 (38.3) | 0.5 (32.9) | −1.4 (29.5) | 3.8 (38.8) |
| Mean daily minimum °C (°F) | −4.9 (23.2) | −4.9 (23.2) | −4.0 (24.8) | −0.9 (30.4) | 3.1 (37.6) | 6.3 (43.3) | 9.4 (48.9) | 8.7 (47.7) | 5.8 (42.4) | 1.6 (34.9) | −0.9 (30.4) | −2.9 (26.8) | 1.4 (34.5) |
| Mean minimum °C (°F) | −11.7 (10.9) | −12.0 (10.4) | −10.2 (13.6) | −7.3 (18.9) | −1.7 (28.9) | 1.8 (35.2) | 5.6 (42.1) | 3.8 (38.8) | 0.5 (32.9) | −4.4 (24.1) | −7.0 (19.4) | −8.9 (16.0) | −13.6 (7.5) |
| Record low °C (°F) | −15.2 (4.6) | −18.3 (−0.9) | −13.1 (8.4) | −11.4 (11.5) | −4.1 (24.6) | 0.1 (32.2) | 3.2 (37.8) | 1.1 (34.0) | −1.6 (29.1) | −8.0 (17.6) | −11.4 (11.5) | −13.5 (7.7) | −18.3 (−0.9) |
| Average precipitation mm (inches) | 89.0 (3.50) | 95.6 (3.76) | 108.2 (4.26) | 73.2 (2.88) | 56.1 (2.21) | 63.8 (2.51) | 74.3 (2.93) | 82.9 (3.26) | 114.3 (4.50) | 113.2 (4.46) | 88.4 (3.48) | 109.1 (4.30) | 1,068.1 (42.05) |
| Average extreme snow depth cm (inches) | 68 (27) | 89 (35) | 104 (41) | 100 (39) | 37 (15) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 18 (7.1) | 35 (14) | 47 (19) | 114 (45) |
| Source: Météo climat stats ||||||||||||||
Climatic data for Tromsø :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average sea temperature °C (°F) | 5.2 (41.4) | 4.6 (40.3) | 4.2 (39.5) | 4.6 (40.3) | 6.2 (43.1) | 8.8 (47.8) | 10.8 (51.4) | 11.3 (52.4) | 10.1 (50.3) | 8.3 (47.0) | 7.6 (45.6) | 6.4 (43.6) | 7.3 (45.2) |
| Source: Weather Atlas ||||||||||||||

### Climate change

In the past years, Tromsø has been experiencing more rain during the winter season. The winter season has shortened by 17 days, and even Oslo, the capital of Norway, is experiencing colder winters than Tromsø despite the latitude. Due to climate change, the snow has been melting mid-winter. It is expected that Tromsø's climate changes from a boreal climate to a humid continental climate by 2100.

### Light and darkness

The midnight sun occurs from about 18 May to 26 July, but mountains block the view of it for a few days, meaning that one can see the midnight sun from about 21 May to 21 July. Owing to Tromsø's high latitude, twilight is long, meaning there is no true night between March 27 and September 17.
The sun remains below the horizon during the polar night from about 26 November to 15 January, but due to the mountains, the sun is not visible from 21 November to 21 January. The return of the sun is an occasion for celebration. However, because of the twilight, there is some daylight for a couple of hours even around midwinter, often with bluish light, allowing for normal day/night cycles during the winter. The nights shorten quickly. By 21 February, the sun is above the horizon from 7:45 am to 4:10 pm and, by 1 April, is above the horizon from 5:50 am to 7:50 pm (daylight saving time). However, if one were to include astronomical twilight as "not night", then Tromsø only has 13 hours and 32 minutes of night on the winter solstice.
The combination of snow cover and sunshine often creates intense light conditions from late February until the snow melts in the lowland (usually late April), and sunglasses are essential when skiing. Because of these diametrically different light conditions in winter, Norwegians often divide it into two seasons: Mørketid (polar night) and Seinvinter (late winter).
It is possible to observe the aurora borealis (northern lights) from Tromsø, as northern Norway is located in the auroral zone. As it is always light in the summer, no aurora is visible between late April and mid August. Additionally, due to the coastal location, Tromsø is often subject to cloudy conditions, which prevent aurorae being seen, even if they are present.

### Villages

The Tromsø municipality includes these villages:
| Kvaløya | Tromsøya Tromsø (city) | Mainland |
| Brensholmen Ersfjordbotn Kaldfjord Kjosen Sandneshamn Sommarøya Kvaløysletta | Bjerkaker Hamna Skattøra | Tromsdalen Breivikeidet Kroken Jøvika Lakselvbukt Oldervik Movik Ramfjordnes Sjursnes |

## Cityscape

The compact city centre has the biggest concentration of historic wooden houses north of Trondheim, and they co-exist with modern architecture. The houses date from 1789 to 1904, when building wooden houses was banned in the city centre, as in several other Norwegian cities. The oldest house in Tromsø is Skansen, built in 1789 on the remains of a 13th-century turf rampart.
The Polar Museum, Polarmuseet, situated in a wharf house from 1837, presents Tromsø's past as a centre for Arctic hunting and starting point for Arctic expeditions. Tromsø Cathedral, Norway's only wooden cathedral, built in 1861, is located in the middle of the city, and so is the small Catholic church Vår Frue ("Our Lady"). Northern Europe's oldest cinema still in use, Verdensteatret, was built in 1915–16. The cinema has large wall paintings, made by the local artist Sverre Mack in 1921, which picture scenes from Norwegian folk lore and fairy tales. The Arctic Cathedral, a modern church built in 1965, is situated on the mainland, facing the sound and city centre. The church, in reality a parish church and not a cathedral, was drawn by Jan Inge Hovig. The Polaria aquarium and experience centre from 1998 is a short walk south from the city centre. The Tromsø Museum is a university museum, presenting culture and nature of North Norway. The museum also displays the Arctic-alpine botanic garden, the world's northernmost botanical garden. A cable car goes up to mount Storsteinen, 420 metres (1,380 feet) above sea level, with a panoramic view over Tromsø. The mountain Tromsdalstinden, 1,238 metres (4,062 ft), on the mainland, which is easily spotted from the city centre, is also a major landmark. At the top of Tromsøya is a lake called Prestvannet.

### Churches

The Church of Norway has eight parishes (sokn) within Tromsø Municipality. It is part of the Tromsø domprosti (arch-deanery) in the Diocese of Nord-Hålogaland.
Churches in Tromsø :
| Parish (sokn) | Church name | Location of the church | Year built |
| Tromsø Domkirken | Tromsø Cathedral | Tromsø | 1861 |
| Elverhøy | Elverhøy Church | Tromsø | 1803 |
| Grønnåsen | Grønnåsen Church | Tromsø | 1996 |
| Hillesøy | Hillesøy Church | Brensholmen, Kvaløya | 1889 |
| Kroken | Kroken Church | Kroken | 2006 |
| Kvaløy | Kvaløy Church | Kaldfjord | 1962 |
| Tromsøysund | Arctic Cathedral | Tromsdalen | 1965 |
| Ullsfjord | Lakselvbukt Church | Lakselvbukt | 1983 |
| Ullsfjord | Ullsfjord Church | Sjursnes | 1862 |
| Ullsfjord | Jøvik Chapel | Jøvika | 1920 |

## Government

Tromsø Municipality is responsible for primary education (through 10th grade), outpatient health services, senior citizen services, welfare and other social services, zoning, economic development, and municipal roads and utilities. The municipality is governed by a municipal council of directly elected representatives. The mayor is indirectly elected by a vote of the municipal council. The municipality is under the jurisdiction of the Nord-Troms og Senja District Court and the Hålogaland Court of Appeal.

### Municipal council

The municipal council (Kommunestyre) of Tromsø is made up of 43 representatives that are elected for four year terms. Tromsø introduced so-called "parliamentary rule" in 2011. The Municipal council elects an executive body, byrådet ("the city council"), consisting of six byråder ("city councilors"). In theory, these are equivalent to the cabinet members of a parliamentary government. The tables below show the current and historical composition of the council by political party.
Tromsø kommunestyre 2023–2027 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 11 |
| | Progress Party (Fremskrittspartiet) | 7 |
| | Green Party (Miljøpartiet De Grønne) | 2 |
| | Conservative Party (Høyre) | 8 |
| | Industry and Business Party (Industri‑ og Næringspartiet) | 2 |
| | Christian Democratic Party (Kristelig Folkeparti) | 1 |
| | Red Party (Rødt) | 2 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 6 |
| | Liberal Party (Venstre) | 1 |
| | City and Rural List (By- og Landlista) | 1 |
| | No to tolls in Tromsø (Nei til bompenger i Tromsø) | 1 |
| Total number of members: | Total number of members: | 43 |
Tromsø kommunestyre 2019–2023 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 8 |
| | People's Action No to More Road Tolls (Folkeaksjonen nei til mer bompenger) | 4 |
| | Progress Party (Fremskrittspartiet) | 4 |
| | Green Party (Miljøpartiet De Grønne) | 3 |
| | Conservative Party (Høyre) | 7 |
| | Christian Democratic Party (Kristelig Folkeparti) | 1 |
| | Red Party (Rødt) | 2 |
| | Centre Party (Senterpartiet) | 5 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 7 |
| | Liberal Party (Venstre) | 1 |
| | City and Rural List (By- og Landlista) | 1 |
| Total number of members: | Total number of members: | 43 |
Tromsø kommunestyre 2015–2019 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 13 |
| | Progress Party (Fremskrittspartiet) | 5 |
| | Green Party (Miljøpartiet De Grønne) | 2 |
| | Conservative Party (Høyre) | 9 |
| | Christian Democratic Party (Kristelig Folkeparti) | 1 |
| | Red Party (Rødt) | 6 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 4 |
| | Liberal Party (Venstre) | 2 |
| Total number of members: | Total number of members: | 43 |
Tromsø kommunestyre 2011–2015 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 11 |
| | Progress Party (Fremskrittspartiet) | 6 |
| | Green Party (Miljøpartiet De Grønne) | 1 |
| | Conservative Party (Høyre) | 16 |
| | Christian Democratic Party (Kristelig Folkeparti) | 1 |
| | Red Party (Rødt) | 3 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 2 |
| | Liberal Party (Venstre) | 2 |
| Total number of members: | Total number of members: | 43 |
Tromsø kommunestyre 2007–2011 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 17 |
| | Progress Party (Fremskrittspartiet) | 9 |
| | Conservative Party (Høyre) | 5 |
| | Christian Democratic Party (Kristelig Folkeparti) | 2 |
| | Red Electoral Alliance (Rød Valgallianse) | 4 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 3 |
| Total number of members: | Total number of members: | 43 |
Tromsø kommunestyre 2003–2007 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 13 |
| | Progress Party (Fremskrittspartiet) | 8 |
| | Conservative Party (Høyre) | 5 |
| | Christian Democratic Party (Kristelig Folkeparti) | 2 |
| | Coastal Party (Kystpartiet) | 1 |
| | Red Electoral Alliance (Rød Valgallianse) | 1 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 10 |
| | Liberal Party (Venstre) | 1 |
| | Parents' List (Foreldre lista) | 1 |
| Total number of members: | Total number of members: | 43 |
Tromsø kommunestyre 1999–2003 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 21 |
| | Progress Party (Fremskrittspartiet) | 6 |
| | Conservative Party (Høyre) | 10 |
| | Christian Democratic Party (Kristelig Folkeparti) | 3 |
| | Red Electoral Alliance (Rød Valgallianse) | 2 |
| | Centre Party (Senterpartiet) | 2 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 6 |
| | Liberal Party (Venstre) | 2 |
| | Solidarity (Solidaritet) | 1 |
| Total number of members: | Total number of members: | 53 |
Tromsø kommunestyre 1995–1999 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 21 |
| | Progress Party (Fremskrittspartiet) | 5 |
| | Green Party (Miljøpartiet De Grønne) | 1 |
| | Conservative Party (Høyre) | 16 |
| | Christian Democratic Party (Kristelig Folkeparti) | 4 |
| | Red Electoral Alliance (Rød Valgallianse) | 4 |
| | Centre Party (Senterpartiet) | 4 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 8 |
| | Liberal Party (Venstre) | 2 |
| | Solidarity (Solidaritet) | 4 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1991–1995 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 17 |
| | Progress Party (Fremskrittspartiet) | 2 |
| | Conservative Party (Høyre) | 25 |
| | Christian Democratic Party (Kristelig Folkeparti) | 3 |
| | Red Electoral Alliance (Rød Valgallianse) | 2 |
| | Centre Party (Senterpartiet) | 4 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 14 |
| | Liberal Party (Venstre) | 2 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1987–1991 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 23 |
| | Progress Party (Fremskrittspartiet) | 5 |
| | Conservative Party (Høyre) | 25 |
| | Christian Democratic Party (Kristelig Folkeparti) | 3 |
| | Red Electoral Alliance (Rød Valgallianse) | 4 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 6 |
| | Liberal Party (Venstre) | 2 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1983–1987 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 25 |
| | Progress Party (Fremskrittspartiet) | 3 |
| | Conservative Party (Høyre) | 23 |
| | Christian Democratic Party (Kristelig Folkeparti) | 4 |
| | Red Electoral Alliance (Rød Valgallianse) | 4 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 6 |
| | Liberal Party (Venstre) | 3 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1979–1983 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 22 |
| | Progress Party (Fremskrittspartiet) | 1 |
| | Conservative Party (Høyre) | 24 |
| | Christian Democratic Party (Kristelig Folkeparti) | 6 |
| | Red Electoral Alliance (Rød Valgallianse) | 3 |
| | Centre Party (Senterpartiet) | 3 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 5 |
| | Liberal Party (Venstre) | 5 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1975–1979 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 25 |
| | Anders Lange's Party (Anders Langes parti) | 1 |
| | Conservative Party (Høyre) | 14 |
| | Christian Democratic Party (Kristelig Folkeparti) | 8 |
| | New People's Party (Nye Folkepartiet) | 3 |
| | Red Electoral Alliance (Rød Valgallianse) | 1 |
| | Centre Party (Senterpartiet) | 6 |
| | Socialist Left Party (Sosialistisk Venstreparti) | 6 |
| | Liberal Party (Venstre) | 5 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1971–1975 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 30 |
| | Conservative Party (Høyre) | 10 |
| | Christian Democratic Party (Kristelig Folkeparti) | 4 |
| | Centre Party (Senterpartiet) | 5 |
| | Socialist People's Party (Sosialistisk Folkeparti) | 5 |
| | Liberal Party (Venstre) | 12 |
| | Socialist common list (Venstresosialistiske felleslister) | 3 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1967–1971 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 37 |
| | Conservative Party (Høyre) | 10 |
| | Communist Party (Kommunistiske Parti) | 1 |
| | Christian Democratic Party (Kristelig Folkeparti) | 2 |
| | Centre Party (Senterpartiet) | 2 |
| | Socialist People's Party (Sosialistisk Folkeparti) | 4 |
| | Liberal Party (Venstre) | 13 |
| Total number of members: | Total number of members: | 69 |
Tromsø kommunestyre 1963–1967 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 36 |
| | Conservative Party (Høyre) | 12 |
| | Communist Party (Kommunistiske Parti) | 1 |
| | Christian Democratic Party (Kristelig Folkeparti) | 3 |
| | Centre Party (Senterpartiet) | 1 |
| | Socialist People's Party (Sosialistisk Folkeparti) | 2 |
| | Liberal Party (Venstre) | 14 |
| Total number of members: | Total number of members: | 69 |
Tromsø bystyre 1959–1963 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 26 |
| | Conservative Party (Høyre) | 10 |
| | Communist Party (Kommunistiske Parti) | 3 |
| | Christian Democratic Party (Kristelig Folkeparti) | 2 |
| | Liberal Party (Venstre) | 12 |
| Total number of members: | Total number of members: | 53 |
Tromsø bystyre 1955–1959 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 24 |
| | Conservative Party (Høyre) | 8 |
| | Communist Party (Kommunistiske Parti) | 4 |
| | Christian Democratic Party (Kristelig Folkeparti) | 3 |
| | Liberal Party (Venstre) | 14 |
| Total number of members: | Total number of members: | 53 |
Tromsø bystyre 1951–1955 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 24 |
| | Conservative Party (Høyre) | 7 |
| | Communist Party (Kommunistiske Parti) | 4 |
| | Liberal Party (Venstre) | 17 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1947–1951 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 22 |
| | Conservative Party (Høyre) | 6 |
| | Communist Party (Kommunistiske Parti) | 6 |
| | Liberal Party (Venstre) | 18 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1945–1947 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 24 |
| | Conservative Party (Høyre) | 5 |
| | Communist Party (Kommunistiske Parti) | 8 |
| | Liberal Party (Venstre) | 15 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1937–1941* :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 21 |
| | Conservative Party (Høyre) | 12 |
| | Communist Party (Kommunistiske Parti) | 2 |
| | Liberal Party (Venstre) | 17 |
| Total number of members: | Total number of members: | 52 |
| Note: Due to the German occupation of Norway during World War II, no elections were held for new municipal councils until after the war ended in 1945. |||
Tromsø bystyre 1934–1937 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 22 |
| | Conservative Party (Høyre) | 13 |
| | Communist Party (Kommunistiske Parti) | 3 |
| | Liberal Party (Venstre) | 14 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1931–1934 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 15 |
| | Communist Party (Kommunistiske Parti) | 5 |
| | Liberal Party (Venstre) | 15 |
| | Joint list of the Conservative Party (Høyre) and the Free-minded People's Party (Frisinnede Folkeparti) | 11 |
| | Joint List(s) of Non-Socialist Parties (Borgerlige Felleslister) | 3 |
| | Local List(s) (Lokale lister) | 3 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1928–1931 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 20 |
| | Communist Party (Kommunistiske Parti) | 4 |
| | Radical People's Party (Radikale Folkepartiet) | 3 |
| | Liberal Party (Venstre) | 12 |
| | Joint list of the Conservative Party (Høyre) and the Free-minded Liberal Party (Frisinnede Venstre) | 13 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1925–1928 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 10 |
| | Social Democratic Labour Party (Socialdemokratiske Arbeiderparti) | 2 |
| | Tromsø Workers Party (Tromsø Arbeiderparti) | 3 |
| | Joint list of the Conservative Party (Høyre) and the Free-minded Liberal Party (Frisinnede Venstre) | 15 |
| | Joint list of the Liberal Party (Venstre) and the Labour Democrats (Arbeiderdemokratene) | 17 |
| | Workers' Common List (Arbeidernes fellesliste) | 5 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1922–1925 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 19 |
| | Joint list of the Liberal Party and the Social Democratic Labour Party (Venstre og Socialdemokratiske Arbeiderparti fellesliste) | 16 |
| | Joint list of the Conservative Party (Høyre) and the Free-minded Liberal Party (Frisinnede Venstre) | 17 |
| Total number of members: | Total number of members: | 52 |
Tromsø bystyre 1919–1922 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 16 |
| | Liberal Party (Venstre) | 13 |
| | Joint list of the Conservative Party (Høyre) and the Free-minded Liberal Party (Frisinnede Venstre) | 15 |
| Total number of members: | Total number of members: | 44 |
Tromsø bystyre 1917–1919 :
| Party name (in Norwegian) | Party name (in Norwegian) | Number of representatives |
| | Labour Party (Arbeiderpartiet) | 16 |
| | Liberal Party (Venstre) | 17 |
| | Joint list of the Conservative Party (Høyre) and the Free-minded Liberal Party (Frisinnede Venstre) | 11 |
| Total number of members: | Total number of members: | 44 |

### Mayors

The mayor (Norwegian: ordfører) of Tromsø is the political leader of the municipality and the chairperson of the municipal council. Here is a list of people who have held this position:
* 1837-1840: Ulrik Frederik Lange
* 1841-1841: Theodor B. Holst
* 1842-1842: Jørgen Christian Dreyer
* 1843-1844: Ulrik Frederik Lange
* 1845-1845: Otto Th. Krogh
* 1846-1848: Ulrik Frederik Lange
* 1849-1850: Martinus Nissen Drejer
* 1851-1851: Peder Hanssen
* 1852-1852: Martinus Nissen Drejer
* 1853-1853: Peder Hanssen
* 1854-1856: Hans Blom
* 1857-1859: Johannes Steen (V)
* 1859-1859: Martinus Nissen Drejer
* 1860-1862: Johannes Steen (V)
* 1862-1862: Peder Hanssen
* 1863-1863: Martinus Nissen Drejer
* 1864-1865: Johannes Steen (V)
* 1865-1867: Martinus Nissen Drejer
* 1868-1868: Nils J. Nilsen
* 1869-1869: Ole Christian Berge
* 1870-1874: Casper R. Knap
* 1874-1874: Ole Christian Berge
* 1875-1881: Jens A. H. Killengreen
* 1882-1882: Andreas R. Moursund
* 1883-1885: Paul Steenstrup Koht (V)
* 1885-1886: Andreas R. Moursund
* 1887-1889: Hans Jacob Horst (V)
* 1889-1890: Nicolai N. Wulff
* 1891-1891: Peder Kjerschow
* 1891-1891: Peter K. Johnsgaard
* 1891-1894: Anton Næss
* 1895-1896: Peter K. Johnsgaard
* 1897-1897: Richard Killengreen
* 1898-1898: Samuel Arnesen
* 1898-1898: Daniel Mack
* 1899-1899: Just Knud Qvigstad (H)
* 1900-1903: Thomas Eidem (V)
* 1904-1904: Oscar Schønberg
* 1905-1905: Just Knud Qvigstad (H)
* 1906-1906: Thomas Eidem (V)
* 1907-1907: Just Knud Qvigstad (H)
* 1908-1908: Arnold Holmboe (V)
* 1909-1909: Herman Meinich (H)
* 1910-1912: Thomas Eidem (V)
* 1913-1914: Arnold Holmboe (V)
* 1914-1916: Olaf Martin Kolsum (V)
* 1917-1917: Arnold Holmboe (V)
* 1918-1919: Ragnvald Gabrielsen
* 1920-1921: Otto Hjersing Munthe-Kaas (H)
* 1922-1922: Thorvald B. Moe
* 1923-1925: Olaf Martin Kolsum (V)
* 1926-1926: Johan Rydningen
* 1926-1927: Olaf Fjalstad
* 1928-1928: Mathias A. Hellebust
* 1929-1932: Jens Isak de Lange Kobro (V)
* 1933-1934: Olaf Martin Kolsum (V)
* 1935-1936: Nils Meland
* 1937-1941: Alfred Nilsen (V)
* 1941-1941: Birger Motzfeldt (NS)
* 1942-1942: Ole Thyholdt (NS)
* 1942-1942: Hjalmar Høyem (NS)
* 1943-1944: Peder Larsen (NS)
* 1944-1944: Anders O. Gagnås (NS)
* 1944-1945: Idar Schiefloe (NS)
* 1945-1945: Lars Nordmo (NS)
* 1945-1945: Jens Isak de Lange Kobro (V)
* 1946-1952: Ingvald Jaklin (Ap)
* 1953-1964: Wictor Robertsen (Ap)
* 1966-1973: Kåre Nordgård (Ap)
* 1973-1975: Helge Jacobsen (Ap)
* 1976-1977: Arne Norgård (Sp)
* 1978-1979: Helge Jacobsen (Ap)
* 1980-1995: Erlend Rian (H)
* 1995-1999: Alvhild Yttergård (H)
* 1999-2007: Herman Kristoffersen (Ap)
* 2007-2011: Arild Hausberg (Ap)
* 2011-2015: Jens Johan Hjort (H)
* 2015-2016: Jarle Aarbakke (Ap)
* 2016-2019: Kristin Røymo (Ap)
* 2019–present: Gunnar Wilhelmsen (Ap)

## Economics

Tromsø is one of the largest fishing ports in Norway. Secondary to fishing, the University of Tromsø is a center for Arctic research. Tourism has exploded as an alternative economic resource in recent decades. There are now direct flights from many European countries.
In 2021, the US Navy opened facilities to service American submarines at the port, after undergoing a significant expansion in 2020.

## Demographics

Historical population :
| Year | 1845 | 1855 | 1865 | 1875 | 1891 | 1900 | 1910 | 1920 | 1930 | 1946 | 1951 | 1960 | 1970 | 1980 | 1990 | 2000 | 2010 | 2020 | 2024 |
| Pop. | 2,011 | 2,958 | 4,073 | 5,443 | 6,000 | 6,996 | 7,633 | 10,071 | 10,336 | 10,990 | 10,940 | 12,283 | 38,094 | 45,833 | 50,548 | 59,145 | 67,305 | 76,974 | 78,745 |
| ±% p.a. | — | +3.93% | +3.25% | +2.94% | +0.61% | +1.72% | +0.88% | +2.81% | +0.26% | +0.38% | −0.09% | +1.29% | +11.98% | +1.87% | +0.98% | +1.58% | +1.30% | +1.35% | +0.57% |
| Note: The municipal borders were changed in 1964, causing a significant change in the population. Source: Statistics Norway and Norwegian Historical Data Centre ||||||||||||||||||||
More than 100 nationalities are represented in the population. Among the more prominent minorities are the Sami, Russians, and Finns, both the local Kvens (descendants of 19th-century Finnish immigrants) and recent immigrants from Finland proper. The world's northernmost mosque is to be found in Tromsø. Our Lady Catholic church is the seat of the world's northernmost Catholic Bishop, who leads the Roman Catholic Territorial Prelature of Tromsø. Although the local Catholic population is only 350 strong, Pope John Paul II visited this small church and stayed as a guest of the bishop in 1989.
Main immigrant groups, 2023 :
| Nationality | Population |
| Poland | 1,076 |
| Germany | 606 |
| Russia | 533 |
| Sweden | 524 |
| Syria | 476 |
| Finland | 399 |
| Thailand | 389 |
| Eritrea | 353 |
| Lithuania | 340 |
| Somalia | 330 |
| Denmark | 303 |
| United Kingdom | 256 |
| Latvia | 224 |
| Philippines | 202 |
| Romania | 194 |

### Sami population

As noted in the history section, the Tromsø area has long been home to Sámi culture. The assimilation of the Coastal Sámi, however, led to the local Sámi culture becoming increasingly invisible in the Tromsø area during the 20th century. Today there is a Sami kindergarten and Sami language classes in certain schools of Tromsø. There have been attempts at countering the decline of the Sámi language through the establishment of a Sami language centre in Lakselvbukt in the Ullsfjorden area. Tromsø Municipality has generally displayed a positive attitude to the indigenous minority culture. For example, the municipality has arranged the Sámi People's Day; signs at the university are bilingual; and when the city made its bid for the Winter Olympics the Sámi name of Tromsø, Romsa, was included in the proposed logo for the event along with a traditional Sámi symbol as its main visual element.

### 2011 language controversy

In 2011, the role of Sámi culture in Tromsø became controversial. The Municipal Board had applied for Tromsø to join the Sámi Language Administrative Area. This would have entailed giving equal space to selected Sámi toponyms on signposts, allowing Sámi-speakers to communicate in their language with local authorities, and making means available from the Sámi Parliament for officials to learn Sámi. Political parties, such as the FrP, Venstre and Høyre, opposed the decision and made it a part of their election campaign to reverse it, claiming that, as "a Norwegian city", Tromsø was not required to display Sámi toponyms along with Norwegian ones or make Sámi an official language along with Norwegian. The parties opposing a larger role for Sámi culture in Tromsø won the election and reversed the application. It has been claimed that the issue has "divided" Tromsø's inhabitants between those who see Sámi culture as naturally belonging there and those who see it as alien to the area. During and after the election campaign, pro-Sámi politicians received threats and people wearing traditional Sámi garb claim to have been subjected to verbal abuse. In June 2013 the municipality nonetheless entered into a cooperation agreement with the Sámi Parliament which is intended to strengthen Sami language education and Sami culture in Tromsø.

## Culture

Being the largest city in Northern Norway, the city of Tromsø is a cultural centre for the municipality and its surrounding region. It gained some international attention when on 11 June 2005 hosted one of six 46664 concerts, designed to put work concerning HIV/AIDS on the international agenda. Torbjørn Brundtland and Svein Berge of the electronica duo Röyksopp and Lene Marlin grew up and started their careers in Tromsø.
Many cultural activities take place in the Cultural Centre (Norwegian: Kulturhuset), including concerts by the Norwegian Arctic Philharmonic Orchestra. Tromsø also has a professional theatre troupe performing at the new theatre building opened in 2005 Hålogaland Teater. The city contains several museums including the Northern Norwegian Art Gallery (Norwegian: Nordnorsk Kunstmuseum), the Tromsø Gallery of Contemporary Art (Norwegian: Tromsø Kunstforening), the first and only Troll museum in Norway and the Perspektivet Museum, which is devoted to Cora Sandel and documentary photography.
The Tromsø techno scene is the origin of many of Norway's most important artists in electronic music, and Tromsø was a leading city at the early stages of the house and techno scene in Norway in the late 1980s. Röyksopp and the ambient electronic musician Geir Jennsen, known as Biosphere, are both from the town.
The local newspapers are iTromsø and Nordlys.
The Arctic Council has its headquarters in Tromsø.

## Festivals and celebrations

Both the Tromsø International Film Festival and Nordlysfestivalen (lit. 'the Aurora Borealis Festival'), a classical music festival, are arranged in January. The end of that month is marked by the 'Day of the Sun' (Soldagen), when the sun finally appears above the horizon after the Polar Night, which is celebrated, mainly by children. The International Day of the Sami People is celebrated at the University of Tromsø and the city hall on 6 February every year. Tromsø's Latin American Festival, No Siesta Fiesta, is held at the end of February. It started in 2007 and showcases "the best of Latin America" in Northern Norway with film, dance, music, art, seminars, debates, markets, and a street Samba parade. Every autumn the Insomnia Festival for electronic music is hosted. It is one of the largest and most important festivals for electronic music and techno culture in Norway.
The Bukta Tromsø Open Air Festival, held in June and July, is a popular music festival. The Bukta festival is mainly a rock festival, but also features other kinds of modern music. The festival takes place in Telegrafbukta, a park on the south-western part of the Tromsøya island. Other popular cultural summer events among the population of Tromsø is the Karlsøy festival and the Riddu Riddu festival, both held in the region surrounding the city.

## Sports

Tromsø is the home of many football clubs, of which the three most prominent are Tromsø IL, which plays in the Norwegian Premier League and is the world's northernmost Premier League football team, I.F. Fløya in the Norwegian First Division (women), and Tromsdalen U.I.L., playing in the Adeccoliga. Tromsø Midnight Sun Marathon is arranged every year in June and recently also a Polar Night Halfmarathon in January. The city is home to many clubs in the top division in various sports. Most notably basketball-outfit Tromsø Storm in the BLNO, BK Tromsø in the top volleyball league for men, and Tromsø Volley in the top volleyball league for women. The oldest sports club in Tromsø is Tromsø Turnforening, a gymnastics club founded in 1862, that also was the cradle of the before mentioned football club Tromsø IL.
Tromsø was selected by the Norwegian National Olympic Committee as Norway's candidate for the 2018 Winter Olympics. This would have made Tromsø the first city north of the Arctic Circle to host the games. There were plans to use ships as the media village. In October 2008 the NOC suspended Tromsø's bid, citing excessive costs. From the southern to the northern tip of the island Tromsøya, there is a floodlit cross-country ski track. A ski jump is also situated on the island, close to the university. As of the spring of 2010, the city's first ice hockey arena has been open and is home to Tromsø Hockey, which plays in the Swedish Ice Hockey Association's League 3. Tromsø is also home to the most northern tennis club in Norway.

## Notable people
### Public servants

* Johannes Steen (1827–1906), educator, politician, Mayor of Tromsø from 1856-1862, and Prime Minister of Norway from 1891-1893
* Oscar Nissen (1843–1911) , physician, newspaper editor, and politician
* Paul Steenstrup Koht (1844–1892), educator, politician, city mayor, and member of the Storting
* Hans Jacob Horst (1848–1931), politician who was a member of the International Court of Arbitration (1906-1929) and a member of the Norwegian Nobel Committee (1903-1931)
* Just Knud Qvigstad (1853–1957), philologist, linguist, ethnographer, cultural historian, headmaster, politician, and Mayor of Tromsø
* Dorothea Schjoldager (1853–1938), feminist proponent for women's rights, school teacher, and social worker
* James Trane (1857–1936), Norwegian-American inventor and industrialist who co-founded Trane
* Einar Hoidale (1870–1952), lawyer, newspaper editor, and politician from Minnesota
* Arnold Holmboe (1873–1956), politician for the Liberal Party and Mayor of Tromsø
* Halvdan Koht (1873–1965), historian, politician, and former head of the Ministry of Foreign Affairs
* Kirsten Sand (1895–1996), first fully technically qualified female Norwegian architect
* Einar Johansen (1915–1996), engineer and decorated resistance member during WWII
* Martin Siem (1915–1996), businessperson and WWII resistance member
* Daniel Carleton Gajdusek (1923–2008), American physician, medical researcher, and co-recipient of the Nobel Prize in Physiology or Medicine for work on prion disease
* Hermod Skånland (1925–2011), economist and Governor of the Central Bank of Norway 1985 to 1993
* Gerd Fleischer (born 1942), human rights activist
* Svein Ludvigsen (born 1946), former politician and a convicted sex offender
* Mads Gilbert (born 1947), physician, humanitarian, activist, and politician
* Herman Kristoffersen (born 1947), former long-serving Mayor of Tromsø who was known as Red Hermann
* Hans-Tore Bjerkaas (born 1951), former Director-General of the Norwegian Broadcasting Corporation

### The arts

* Jorgen Dreyer (1877–1948), American sculptor of monuments who emigrated in 1903
* Cora Sandel (1880–1974), writer and painter
* Peter Wessel Zapffe (1899–1990), metaphysician, author, lawyer, and mountaineer
* Lars Berg (1901–1969), teacher, novelist, short story writer, and playwright
* Egil Rasmussen (1903–1964), author, literature critic, and pianist who grew up in Tromsø
* Kristian Kristiansen (1909–1980), novelist, playwright, and writer of short stories
* Rønnaug Alten (1910–2001), actress and stage instructor
* Yngvar Ustvedt (1928–2007), writer, biographer, critic, and radio personality
* Per Bronken (1935–2002), poet, novelist, actor, film director, and stage producer
* Arthur Arntzen (born 1937), journalist, humorist, actor, and writer
* Kirsti Sparboe (born 1946), musical performer and an actress
* Jorun Thørring (born 1955), specialist in gynaecology and author
* Geir Jenssen (born 1962), electronic musician whose stage name is Biosphere
* The Pussycats (band 1964), pop-rock band
* Erik Skjoldbjærg (born 1964), writer and film director
* Helge Andreas Norbakken (born 1965), drummer
* Anneli Drecker (born 1969), singer, actress, and frontwoman for Bel Canto
* Dag-Are Haugan (born 1970), musician with the group Alog
* Espen Lind (born 1971), record producer, songwriter, singer, and multi-instrumentalist
* Espen Sommer Eide (born 1972), composer and musician with Alog
* Thomas Thormodsæter Haugen (born 1974) stage name Samoth, multi-instrumentalist in the black metal band Emperor
* Lisa Stokke (born 1975), actor and singer
* Svein Berge (born 1976) and Torbjørn Brundtland (born 1975), musicians in the duo Röyksopp
* Ewa Da Cruz (born 1976), Norwegian-American television, soap opera, and film actress
* Lene Marlin (born 1980), singer-songwriter and musician
* Dagny Norvoll Sandvik (born 1990), singer, pop musician, and songwriter

### Sport

* Per-Mathias Høgmo (born 1959), football manager, former manager of both the men and women's national football teams
* Bjørn Johansen (born 1969), former Norwegian footballer with over 400 club caps
* Roger Nilsen (born 1969), football coach and former player with 329 club caps and 32 for Norway
* Bjarte Engen Vik (born 1971), former Norwegian Nordic combined athlete who was a multiple medallist at the 1994 and 1998 Winter Olympics
* Ole Martin Årst (born 1974), retired footballer who grew up in Tromsø and earned 414 club caps, 22 for Norway
* Ailo Gaup (born 1979), former Freestyle Motocross rider who invented the Underflip
* Morten Giæver (born 1982), football midfielder with over 430 club caps who was brought up in Tromsø
* Ruben Yttergård Jenssen (born 1988), footballer with over 350 club caps and 39 for Norway
* Guro Pettersen (born 1991), football goalkeeper for the Norway national team
* Vilde Nilsen (born 2001), paralympic cross-country skier and biathlete who was a team silver medallist at the 2018 Winter Paralympics
* Elling Carlsen (1819–1900), skipper, seal hunter, and explorer
* Richard With (1846–1930), ship's captain, businessman, and politician
* Henry Rudi (1889–1970), trapper and polar bear hunter

## Twin towns – sister cities

Tromsø is twinned with:
* Anchorage, United States (1969)
* Gaza City, The Palestinian Authorities (2001)
* Kemi, Finland (1940)
* Luleå, Sweden (1950)
* Quetzaltenango, Guatemala (1999)
* Zagreb, Croatia (1971)
Tromsø signed a sister city agreement with Murmansk on 10 July 1972 and terminated it on 22 October 2022, after the Russian invasion of Ukraine in February 2022.

## In popular culture

Since January 2024, Tromsø has the northernmost McDonald's in the world, taking the title from Rovaniemi, Finland. It is also home to the northernmost location of many chains, such as Burger King and 7-Eleven.