Largest Cities by Population in South Korea

85 cities in South Korea, ranked by population at the census of November 1, 2025 (by National Statistical Office, South Korea).

RankCityNative NamePopulation
1Seoul서울특별시9,315,066
2Busan부산광역시3,235,362
3Incheon인천광역시3,093,590
4Daeguincl. Gunwi-gun대구광역시2,363,643
5Daejeon대전광역시1,469,299
6Gwangju광주광역시1,431,903
7Suwon수원시1,221,616
8Ulsan울산광역시1,103,509
9Yongin용인시1,085,182
10Goyang고양시1,036,961
11Hwaseong화성시1,027,532
12Changwonincl. Masan, Jinhae창원시992,277
13Seongnam성남시893,970
14Cheongjuincl. Cheongwon-gun청주시879,244
15Bucheon부천시785,571
16Namyangju남양주시716,833
17Cheonan천안시702,769
18Ansan안산시692,647
19Jeonju전주시641,632
20Pyeongtaek평택시627,213
21Siheung시흥시569,365
22Anyang안양시556,447
23Gimhae김해시552,713
24Paju파주시524,107
25Gimpo김포시497,542
26Jeju제주시491,186
27Pohang포항시490,882
28Uijeongbu의정부시459,109
29Gumi구미시408,184
30Gwangju광주시403,286
31Asan아산시397,833
32Sejong세종특별자치시392,471
33Wonju원주시367,326
34Yangsan양산시363,512
35Jinju진주시344,145
36Hanam하남시319,075
37Yangju양주시301,086
38Gyeongsan경산시299,199
39Chuncheon춘천시293,524
40Gwangmyeong광명시284,792
41Iksan익산시272,708
42Suncheon순천시271,415
43Gunsan군산시264,575
44Osan오산시262,421
45Yeosu여수시262,133
46Gyeongju경주시260,108
47Gunpo군포시253,270
48Geoje거제시240,905
49Icheon이천시232,146
50Anseong안성시218,126
51Chungju충주시217,413
52Gangneung강릉시211,628
53Mokpo목포시208,883
54Guri구리시181,716
55Dangjin당진시179,584
56Seogwipo서귀포시178,168
57Seosan서산시176,859
58Pocheon포천시156,136
59Uiwang의왕시155,267
60Andong안동시154,183
61Gwangyang광양시151,710
62Gimcheon김천시135,795
63Jecheon제천시130,497
64Naju나주시120,095
65Tongyeong통영시118,589
66Yeoju여주시118,096
67Nonsan논산시114,111
68Sacheon사천시109,091
69Gongju공주시104,504
70Miryang밀양시101,911
71Jeongeup정읍시101,129
72Yeongju영주시97,800
73Yeongcheon영천시97,214
74Boryeong보령시94,459
75Sangju상주시90,909
76Dongducheon동두천시89,403
77Donghae동해시84,564
78Gimje김제시80,893
79Sokcho속초시78,972
80Gwacheon과천시75,819
81Namwon남원시73,263
82Mungyeong문경시64,382
83Samcheok삼척시62,105
84Gyeryong계룡시44,181
85Taebaek태백시36,823

Source: National Statistical Office, South Korea (2025 census), via City Population by Thomas Brinkhoff.

Why don't these match official city populations?Official figures typically count only the population within administrative boundaries. UN urban area figures cover the entire built-up area, which can include multiple cities and towns.

Tokyo

33,338,852

Urban area

9,953,160

23 wards

Essen

2,709,375

Urban area

573,618

City of Essen

Ankara

3,630,865

Urban area

5,186,002

Metropolitan municipality

What counts as an urban area? The UN uses satellite imagery to map built-up land, and treats each continuous stretch of built-up land as an urban area. This means that urban areas can extend beyond official city boundaries, and may include multiple cities and towns within a single urban area.

Can an urban area be smaller than its city? Yes. While most cities have urban areas larger than their administrative boundaries, some cities have extensive administrative limits that include sparsely populated areas.

49 urban areas in South Korea with 50,000 or more inhabitants, ranked by the UN's population estimates for 2026.

RankUrban AreaPopulation Estimate (2026)Yearly ChangeLand Area (km²)Density (P/km²)World RankProjections (2030)Projections (2050)
1Seoul22,517,764+0.12%2,2569,9801022,626,89321,225,404
2Busan3,248,254−0.46%3618,9981513,188,3872,742,944
3Daegu2,323,365−0.48%2888,0672142,279,0431,968,877
4Daejeon1,513,768−0.23%2047,4283381,499,6431,353,972
5Gwangju1,438,457−0.21%1907,5713551,426,3061,297,682
6Ulsan877,731−0.47%2004,389601861,222723,568
7Cheongju-si686,911−0.50%848,197792673,221612,122
8Changwon662,616−0.48%1096,079823649,994547,493
9Jeonju635,365−0.27%907,075857628,498570,907
10Cheonan-si427,478−0.21%805,3431,322423,876383,153
11Pohang-si380,518−0.49%1033,6941,515373,119314,776
12Gumi-si294,849−0.50%674,4011,992288,955239,874
13Gimhae260,150−0.54%673,8832,272254,576208,216
14Mokpo-si237,836−0.23%435,5312,491235,686212,211
15Chuncheon237,332+0.40%396,0242,502241,122221,546
16Jinju-si236,273−0.61%554,3272,512230,539192,573
17Wonju231,200+0.49%425,5312,569235,740215,681
18Gimpo178,701+0.15%483,7233,422179,807167,760
19Gunsan-si170,866−0.24%533,2243,594169,257148,267
20Iksan-si164,174−0.24%354,6913,724162,604144,595
21Dongducheon155,338+1.10%493,1963,955162,165140,064
22Yangsan149,503−0.52%354,2724,103146,412123,084
23Suncheon-si147,630−0.23%364,1014,172146,248131,433
24Pyeongtaek144,782−0.24%334,3874,267143,402125,386
25Hwado131,609+0.12%245,4844,698132,218121,217
26Gangneung128,709+0.14%343,7864,815129,445119,496
27Chungju-si103,759+0.50%185,6396,038105,82595,441
28Jinhae-gu98,809−0.51%224,4916,33296,81081,082
29Gwangju98,330+0.15%442,2356,36398,91280,784
30Geoje-si98,196−0.49%204,9106,37096,26080,348
31웅상85,929−1.48%223,8367,33480,84363,113
32Ayang82,538−0.54%273,0577,66680,75663,517
33Jecheon-si74,717+0.06%174,3958,43574,89469,135
34Sokcho74,655+0.13%243,1118,44575,05270,038
35Jeju-si73,889−0.57%252,9568,54972,19160,979
36Asan-si72,045−0.25%126,0048,73371,33564,569
37Jangdeung-ri69,322−0.24%193,6499,04968,65362,107
38Tongyeong-si65,710−0.51%183,6519,55764,36054,373
39Daegot65,529+0.12%272,4279,58265,85458,209
40Gyeongju-si63,310−0.55%203,1659,92461,924–
41Andong-si62,425−0.53%163,90210,07661,093–
42Hallim-myeon62,230−0.58%292,14610,11360,778–
43Wolha-dong62,101−0.25%282,21810,12961,481–
44Taein-dong60,273−0.70%351,73210,38958,583–
45Hyangnam59,775+0.12%242,49110,46560,069–
46Noha-ri56,133+0.15%252,24511,11056,471–
47Paju55,365+0.94%124,46511,26557,44351,238
48Hogye-ri53,477−0.60%105,34811,62752,200–
49Sincheon-dong52,735−0.50%114,79411,76551,684–

Source: United Nations, Department of Economic and Social Affairs, Population Division (2025). World Urbanization Prospects: The 2025 Revision, Online Edition.

See also