# Geographical regions of Turkey

The geographical regions of Turkey comprise seven regions (Turkish: bölge), which were originally defined at the country's First Geography Congress in 1941. The regions are subdivided into 31 sections (Turkish: bölüm), which are further divided into numerous areas (Turkish: yöre), as defined by microclimates and bounded by local geographic formations.
"Regions" as defined in this context are merely for geographic, demographic, and economic purposes and do not refer to an administrative division.

## Regions and subregions

| Region | Largest city | Area | Area | Provinces (Counties) | Population (2021) | Location |
| Region | Largest city | km$^2$ | sq mi | Provinces (Counties) | Population (2021) | Location |
| Aegean Region | İzmir | 85,000 | 33,000 | 8 | 10,477,153 | |
| Black Sea Region | Samsun | 143,537 | 55,420 | 18 | 7,696,132 | |
| Central Anatolia Region | Ankara | 163,057 | 62,957 | 13 | 12,896,255 | |
| Eastern Anatolia Region | Erzurum | 165,436 | 63,875 | 14 | 6,513,106 | |
| Marmara Region | Istanbul | 67,000 | 26,000 | 11 | 26,650,405 | |
| Mediterranean Region | Antalya | 122,927 | 47,462 | 8 | 10,584,506 | |
| Southeastern Anatolia Region | Şanlıurfa | 59,176 | 22,848 | 9 | 8,576,391 | |
* Aegean Region
** Aegean Section
*** Edremit Area
*** Bakirçay Area
*** Gediz Area
*** İzmir Area
*** Küçük Menderes Area
*** Büyük Menderes Area
*** Mentese Area
** Inner Western Anatolia Section
* Black Sea Region
** Western Black Sea Section
*** Inner Black Sea Area
*** Küre Mountains Area
** Central Black Sea Section
*** Canik Mountains Area
*** Inner Central Black Sea Area
** Eastern Black Sea Section
*** Eastern Black Sea Coast Area
*** Upper Kelkit - Çoruh Gully Area
* Central Anatolia Region
** Konya Section
*** Obruk [tr] Plateau
*** Konya - Ereğli Vicinity
** Upper Sakarya Section
*** Ankara Area
*** Porsuk Gully Area
*** Sündiken Mountain Chain Area
*** Upper Sakarya Area
*** Konya - Ereğli Vicinity
** Middle Kizilirmak Section
** Upper Kizilirmak Section
* Eastern Anatolia Region
** Upper Euphrates Section
** Erzurum - Kars Section
** Upper Murat - Van Section
*** Upper Murat Area
*** Van Area
** Hakkâri Section
* Marmara Region
** Çatalca - Kocaeli Section
*** Adapazarı Area
*** Istanbul Area
** Ergene Section
** Southern Marmara Section
*** Biga - Gallipoli Area
*** Bursa Area
*** Karesi Area
*** Samanlı Area
** Yıldız Section
* Mediterranean Region
** Adana Section
*** Çukurova - Taurus Mountains Area
*** Antakya - Kahramanmaras Area
** Antalya Section
*** Antalya Area
*** Göller Area
*** Taseli - Mut Area
*** Teke Area
* Southeastern Anatolia Region
** Middle Euphrates Section
*** Gaziantep Area
*** Şanlıurfa Area
** Tigris Section
*** Diyarbakır Area
*** Mardin - Midyat Area

## Distinctions of the regions

The Aegean Region has:
* the longest coastline
The Black Sea Region has:
* highest annual precipitation
* largest forest area
* fewest sunshine hours
* most landslides
The Central Anatolia Region has:
* lowest annual precipitation,
* most erosion
The Eastern Anatolia Region has:
* largest area
* highest elevation
* lowest annual temperature
* coldest winters
* highest temperature difference between seasons
* most volcanic activity
* smallest population
* highest mineral resources
The Marmara Region has:
* smallest area
* lowest elevation
* most climate diversity
* highest energy consumption,
* coolest summers,
* largest population
The Mediterranean Region has:
* highest annual temperature
* mildest winters
* wettest winters,
* most greenhouse farming
The Southeastern Anatolia Region has:
* hottest summers
* driest summers
* smallest forest area
* most sunshine hours

## Population by region

Population by region (2021) :
| Region | Population |
| Marmara | 26,650,405 |
| Central Anatolia | 12,896,255 |
| Mediterranean | 10,584,506 |
| Aegean | 10,477,153 |
| Southeastern Anatolia | 8,576,391 |
| Black Sea | 7,696,132 |
| Eastern Anatolia | 6,513,106 |