City Country Population within city limits Date 2011 Eurostat population Image Location Ref . Istanbul Turkey 7007150292310000000 ♠ 15,029,231 000000002017 - 12 - 31 - 0000 31 December 2017 41 ° 00 ′ 49 '' N 28 ° 57 ′ 18 '' E ﻿ / ﻿ 41.013611 ° N 28.955 ° E ﻿ / 41.013611 ; 28.955 ﻿ ( 1 Istanbul ) Moscow Russia 7007131975960000000 ♠ 13,197,596 000000002017 - 01 - 01 - 0000 1 January 2017 55 ° 45 ′ 00 '' N 37 ° 37 ′ 00 '' E ﻿ / ﻿ 55.75 ° N 37.616667 ° E ﻿ / 55.75 ; 37.616667 ﻿ ( 2 Moscow ) London United Kingdom 7006878789200000000 ♠ 8,787,892 000000002016 - 06 - 30 - 0000 30 June 2016 7006817394100000000 ♠ 8,173,941 51 ° 30 ′ 26 '' N 0 ° 07 ′ 39 '' W ﻿ / ﻿ 51.507222 ° N 0.1275 ° W ﻿ / 51.507222 ; - 0.1275 ﻿ ( 3 London ) Saint Petersburg Russia 7006532330000000000 ♠ 5,323,300 000000002017 - 01 - 01 - 0000 1 January 2017 59 ° 57 ′ N 30 ° 18 ′ E ﻿ / ﻿ 59.95 ° N 30.3 ° E ﻿ / 59.95 ; 30.3 ﻿ ( 1 Saint Petersburg ) Berlin Germany 7006367100000000000 ♠ 3,671,000 000000002016 - 12 - 31 - 0000 31 December 2016 7006346072500000000 ♠ 3,460,725 52 ° 31 ′ 00 '' N 13 ° 23 ′ 00 '' E ﻿ / ﻿ 52.516667 ° N 13.383333 ° E ﻿ / 52.516667 ; 13.383333 ﻿ ( 5 Berlin ) 6 Madrid Spain 7006316523500000000 ♠ 3,165,235 000000002014 - 01 - 01 - 0000 1 January 2014 7006319864500000000 ♠ 3,198,645 40 ° 23 ′ 00 '' N 3 ° 43 ′ 00 '' W ﻿ / ﻿ 40.383333 ° N 3.716667 ° W ﻿ / 40.383333 ; - 3.716667 ﻿ ( 6 Madrid ) 7 Kiev Ukraine 7006293440100000000 ♠ 2,934,401 000000002018 - 02 - 01 - 0000 1 February 2018 50 ° 27 ′ 00 '' N 30 ° 31 ′ 24 '' E ﻿ / ﻿ 50.45 ° N 30.523333 ° E ﻿ / 50.45 ; 30.523333 ﻿ ( 8 Kiev ) 8 Rome Italy 7006287903800000000 ♠ 2,879,038 000000002017 - 10 - 19 - 0000 19 October 2017 7006287349400000000 ♠ 2,873,494 41 ° 54 ′ N 12 ° 30 ′ E ﻿ / ﻿ 41.9 ° N 12.5 ° E ﻿ / 41.9 ; 12.5 ﻿ ( 7 Rome ) 9 Paris France 7006224134600000000 ♠ 2,241,346 000000002014 - 01 - 01 - 0000 1 January 2014 7006224997700000000 ♠ 2,249,977 48 ° 51 ′ 24 '' N 2 ° 21 ′ 03 '' E ﻿ / ﻿ 48.8567 ° N 2.3508 ° E ﻿ / 48.8567 ; 2.3508 ﻿ ( 9 Paris ) 10 Minsk Belarus 7006194940000000000 ♠ 1,949,400 000000002015 - 10 - 01 - 0000 1 October 2015 53 ° 54 ′ 00 '' N 27 ° 34 ′ 00 '' E ﻿ / ﻿ 53.9 ° N 27.566667 ° E ﻿ / 53.9 ; 27.566667 ﻿ ( 10 Minsk ) 11 Bucharest Romania 7006188314400000000 ♠ 1,883,144 000000002016 - 01 - 01 - 0000 1 January 2016 7006190329900000000 ♠ 1,903,299 44 ° 25 ′ 57 '' N 26 ° 06 ′ 14 '' E ﻿ / ﻿ 44.4325 ° N 26.103889 ° E ﻿ / 44.4325 ; 26.103889 ﻿ ( 11 Bucharest ) 12 Vienna Austria 7006187783600000000 ♠ 1,877,836 000000002017 - 07 - 01 - 0000 1 July 2017 7006159862600000000 ♠ 1,598,626 48 ° 12 ′ 00 '' N 16 ° 22 ′ 00 '' E ﻿ / ﻿ 48.2 ° N 16.366667 ° E ﻿ / 48.2 ; 16.366667 ﻿ ( 12 Vienna ) 13 Budapest Hungary 7006175940700000000 ♠ 1,759,407 000000002015 - 01 - 01 - 0000 1 January 2015 7006172904000000000 ♠ 1,729,040 47 ° 29 ′ 33 '' N 19 ° 03 ′ 05 '' E ﻿ / ﻿ 47.4925 ° N 19.051389 ° E ﻿ / 47.4925 ; 19.051389 ﻿ ( 14 Budapest ) 14 Hamburg Germany 7006175804100000000 ♠ 1,758,041 000000002014 - 10 - 31 - 0000 31 October 2014 7006178644800000000 ♠ 1,786,448 53 ° 33 ′ 55 '' N 10 ° 00 ′ 05 '' E ﻿ / ﻿ 53.565278 ° N 10.001389 ° E ﻿ / 53.565278 ; 10.001389 ﻿ ( 13 Hamburg ) 15 Warsaw Poland 7006174891600000000 ♠ 1,748,916 000000002016 - 06 - 30 - 0000 30 June 2016 7006170849100000000 ♠ 1,708,491 52 ° 14 ′ 00 '' N 21 ° 01 ′ 00 '' E ﻿ / ﻿ 52.233333 ° N 21.016667 ° E ﻿ / 52.233333 ; 21.016667 ﻿ ( 15 Warsaw ) 16 Barcelona Spain 7006160238600000000 ♠ 1,602,386 000000002014 - 01 - 01 - 0000 1 January 2014 7006161101300000000 ♠ 1,611,013 41 ° 23 ′ 00 '' N 2 ° 11 ′ 00 '' E ﻿ / ﻿ 41.383333 ° N 2.183333 ° E ﻿ / 41.383333 ; 2.183333 ﻿ ( 16 Barcelona ) 17 Munich Germany 7006152167800000000 ♠ 1,521,678 000000002015 - 12 - 31 - 0000 31 December 2015 7006137817600000000 ♠ 1,378,176 48 ° 08 ′ 00 '' N 11 ° 34 ′ 00 '' E ﻿ / ﻿ 48.133333 ° N 11.566667 ° E ﻿ / 48.133333 ; 11.566667 ﻿ ( 18 Munich ) 18 Kharkiv Ukraine 7006143156500000000 ♠ 1,431,565 000000002014 - 01 - 01 - 0000 1 January 2014 50 ° 00 ′ 16 '' N 36 ° 13 ′ 53 '' E ﻿ / ﻿ 50.004444 ° N 36.231389 ° E ﻿ / 50.004444 ; 36.231389 ﻿ ( 17 Kharkiv ) 19 Milan Italy 7006136269500000000 ♠ 1,362,695 000000002017 - 07 - 31 - 0000 31 July 2017 7006132411000000000 ♠ 1,324,110 45 ° 28 ′ 00 '' N 9 ° 11 ′ 00 '' E ﻿ / ﻿ 45.466667 ° N 9.183333 ° E ﻿ / 45.466667 ; 9.183333 ﻿ ( 19 Milan ) 20 Prague Czech Republic 7006128020800000000 ♠ 1,280,208 000000002016 - 12 - 31 - 0000 31 December 2016 7006124166400000000 ♠ 1,241,664 50 ° 05 ′ 00 '' N 14 ° 25 ′ 00 '' E ﻿ / ﻿ 50.083333 ° N 14.416667 ° E ﻿ / 50.083333 ; 14.416667 ﻿ ( 21 Prague ) 21 Sofia Bulgaria 7006132402400000000 ♠ 1,324,024 000000002017 - 09 - 15 - 0000 15 September 2017 7006132402500000000 ♠ 1,324,025 42 ° 42 ′ N 23 ° 20 ′ E ﻿ / ﻿ 42.7 ° N 23.33 ° E ﻿ / 42.7 ; 23.33 ﻿ ( 22 Bulgaria ) 22 Nizhny Novgorod Russia 7006125000000000000 ♠ 1,250,000 000000002013 - 01 - 01 - 0000 1 January 2013 56 ° 19 ′ 37 '' N 44 ° 00 ′ 27 '' E ﻿ / ﻿ 56.326944 ° N 44.0075 ° E ﻿ / 56.326944 ; 44.0075 ﻿ ( 20 Nizhny Novgorod ) 23 Kazan Russia 7006121696500000000 ♠ 1,216,965 000000002016 - 01 - 01 - 0000 1 January 2016 55 ° 47 ′ 25 '' N 49 ° 08 ′ 05 '' E ﻿ / ﻿ 55.790278 ° N 49.134722 ° E ﻿ / 55.790278 ; 49.134722 ﻿ ( 23 Kazan ) 24 Brussels Belgium 7006117182800000000 ♠ 1,171,828 000000002015 - 01 - 01 - 0000 1 January 2015 7006113677800000000 ♠ 1,136,778 50 ° 50 ′ 48 '' N 4 ° 21 ′ 09 '' E ﻿ / ﻿ 50.8467 ° N 4.3525 ° E ﻿ / 50.8467 ; 4.3525 ﻿ ( 26 Brussels ) 25 Samara Russia 7006117091000000000 ♠ 1,170,910 000000002016 - 01 - 01 - 0000 1 January 2016 53 ° 12 ′ 10 '' N 50 ° 08 ′ 27 '' E ﻿ / ﻿ 53.202778 ° N 50.140833 ° E ﻿ / 53.202778 ; 50.140833 ﻿ ( 24 Samara ) 26 Belgrade Serbia 7006116676300000000 ♠ 1,166,763 000000002011 - 09 - 30 - 0000 30 September 2011 44 ° 49 ′ 00 '' N 20 ° 28 ′ 00 '' E ﻿ / ﻿ 44.816667 ° N 20.466667 ° E ﻿ / 44.816667 ; 20.466667 ﻿ ( 25 Belgrade ) 27 Birmingham United Kingdom 7006112460000000000 ♠ 1,124,600 000000002016 - 06 - 30 - 0000 30 June 2016 7006107304500000000 ♠ 1,073,045 52 ° 28 ′ 59 '' N 1 ° 53 ′ 37 '' W ﻿ / ﻿ 52.483056 ° N 1.893611 ° W ﻿ / 52.483056 ; - 1.893611 ﻿ ( 28 Birmingham ) 28 Ufa Russia 7006112142900000000 ♠ 1,121,429 000000002016 - 01 - 01 - 0000 1 January 2016 54 ° 45 ′ 00 '' N 55 ° 58 ′ 00 '' E ﻿ / ﻿ 54.75 ° N 55.966667 ° E ﻿ / 54.75 ; 55.966667 ﻿ ( 29 Ufa ) 29 Rostov - on - Don Russia 7006111987500000000 ♠ 1,119,875 000000002016 - 01 - 01 - 0000 1 January 2016 47 ° 14 ′ 00 '' N 39 ° 42 ′ 00 '' E ﻿ / ﻿ 47.233333 ° N 39.7 ° E ﻿ / 47.233333 ; 39.7 ﻿ ( 27 Rostov - on - Don ) 30 Tbilisi Georgia 7006111803500000000 ♠ 1,118,035 2014 41 ° 43 ′ 00 '' N 44 ° 47 ′ 00 '' E ﻿ / ﻿ 41.7166 ° N 44.7833 ° E ﻿ / 41.7166 ; 44.7833 ﻿ ( 29 Tbilisi ) 31 Cologne Germany 7006103948800000000 ♠ 1,039,488 000000002014 - 06 - 30 - 0000 30 June 2014 7006100711900000000 ♠ 1,007,119 50 ° 56 ′ 11 '' N 6 ° 57 ′ 10 '' E ﻿ / ﻿ 50.936389 ° N 6.952778 ° E ﻿ / 50.936389 ; 6.952778 ﻿ ( 30 Cologne ) 32 Perm Russia 7006104187600000000 ♠ 1,041,876 000000002016 - 01 - 01 - 0000 1 January 2016 58 ° 00 ′ 00 '' N 56 ° 19 ′ 00 '' E ﻿ / ﻿ 58 ° N 56.316667 ° E ﻿ / 58 ; 56.316667 ﻿ ( 32 Perm ) 33 Voronezh Russia 7006103238200000000 ♠ 1,032,382 000000002016 - 01 - 01 - 0000 1 January 2016 51 ° 40 ′ 18 '' N 39 ° 12 ′ 38 '' E ﻿ / ﻿ 51.671667 ° N 39.210556 ° E ﻿ / 51.671667 ; 39.210556 ﻿ ( 33 Voronezh ) 34 Volgograd Russia 7006101613700000000 ♠ 1,016,137 000000002016 - 01 - 01 - 0000 1 January 2016 48 ° 42 ′ 00 '' N 44 ° 31 ′ 00 '' E ﻿ / ﻿ 48.7 ° N 44.516667 ° E ﻿ / 48.7 ; 44.516667 ﻿ ( 31 New York City ) 35 Odessa Ukraine 7005999359000000000 ♠ 999,359 000000002014 - 01 - 01 - 0000 1 January 2014 46 ° 28 ′ 00 '' N 30 ° 44 ′ 00 '' E ﻿ / ﻿ 46.466667 ° N 30.733333 ° E ﻿ / 46.466667 ; 30.733333 ﻿ ( 34 Odessa ) 36 Dnipro Ukraine 7005982969000000000 ♠ 982,969 000000002014 - 01 - 01 - 0000 1 January 2014 48 ° 27 ′ 00 '' N 34 ° 59 ′ 00 '' E ﻿ / ﻿ 48.45 ° N 34.983333 ° E ﻿ / 48.45 ; 34.983333 ﻿ ( 36 Dnipro ) 37 Naples Italy 7005970185000000000 ♠ 970,185 000000002017 - 10 - 19 - 0000 19 October 2017 7005959574000000000 ♠ 959,574 40 ° 50 ′ 00 '' N 14 ° 15 ′ 00 '' E ﻿ / ﻿ 40.833333 ° N 14.25 ° E ﻿ / 40.833333 ; 14.25 ﻿ ( 35 Naples )

Question: 5 cities with the highest population in europe
Answer: Istanbul