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Largest cities in South Korea

Seoul, South Korea has the highest population of the 30 cities compared: 9,579,449 people (Seoul 100 Statistics, 2026-03-31).

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South Korean municipalities ranked by their own published resident population.

Items compared
30
Countries represented
1
Last checked
2026-07-22

Source-backed answers

Compare each answer with its unit and checked date; the complete source ledger is below.

Showing all 30 rows

Original rankCity or placePublished valueSource and scope
1Seoul, South Korea9,579,449 people2026-07-22
Source Scope: city · Period: 2026-03-31
2수원시, South Korea1,185,770 people2026-07-22
Source Scope: city · Period: 2026-06-30
3용인시, South Korea1,090,211 people2026-07-22
Source Scope: city · Period: 2026-06-30
4고양시, South Korea1,057,438 people2026-07-22
Source Scope: city · Period: 2026-06-30
5화성시, South Korea998,746 people2026-07-22
Source Scope: city · Period: 2026-06-30
6창원시(통합), South Korea986,273 people2026-07-22
Source Scope: city · Period: 2026-06-30
7성남시, South Korea902,344 people2026-07-22
Source Scope: city · Period: 2026-06-30
8청주시, South Korea859,571 people2026-07-22
Source Scope: city · Period: 2026-06-30
9부천시, South Korea755,453 people2026-07-22
Source Scope: city · Period: 2026-06-30
10남양주시, South Korea727,440 people2026-07-22
Source Scope: city · Period: 2026-06-30
11천안시, South Korea666,182 people2026-07-22
Source Scope: city · Period: 2026-06-30
12송파구, South Korea650,258 people2026-07-22
Source Scope: city · Period: 2026-06-30
13전주시, South Korea620,874 people2026-07-22
Source Scope: city · Period: 2026-06-30
14평택시, South Korea619,670 people2026-07-22
Source Scope: city · Period: 2026-06-30
15안산시, South Korea609,240 people2026-07-22
Source Scope: city · Period: 2026-06-30
16안양시, South Korea562,305 people2026-07-22
Source Scope: city · Period: 2026-06-30
17강남구, South Korea552,830 people2026-07-22
Source Scope: city · Period: 2026-06-30
18gangseogu, South Korea548,515 people2026-07-22
Source Scope: city · Period: 2026-06-30
19파주시, South Korea533,387 people2026-07-22
Source Scope: city · Period: 2026-06-30
20김해시, South Korea532,777 people2026-07-22
Source Scope: city · Period: 2026-06-30
21시흥시, South Korea514,831 people2026-07-22
Source Scope: city · Period: 2026-06-30
22달서구, South Korea513,399 people2026-07-22
Source Scope: city · Period: 2026-06-30
23강동구, South Korea499,011 people2026-07-22
Source Scope: city · Period: 2026-06-30
24부평구, South Korea488,191 people2026-07-22
Source Scope: city · Period: 2026-06-30
25포항시, South Korea487,008 people2026-07-22
Source Scope: city · Period: 2026-06-30
26제주시, South Korea484,123 people2026-07-22
Source Scope: city · Period: 2026-06-30
27김포시, South Korea484,042 people2026-07-22
Source Scope: city · Period: 2026-06-30
28덕양구, South Korea483,048 people2026-07-22
Source Scope: city · Period: 2026-06-30
29노원구, South Korea481,053 people2026-07-22
Source Scope: city · Period: 2026-06-30
30남동구, South Korea479,149 people2026-07-22
Source Scope: city · Period: 2026-06-30

What the numbers say

  • Seoul, South Korea leads at 9,579,449 people.
  • 남동구, South Korea sits at the other end with 479,149 people.
  • The middle of this ranking is 609,240 people, across 30 places that publish the metric.
  • The spread between first and last is 9,100,300 people.

Quick answer

What does Largest cities in South Korea show?

Seoul, South Korea has the highest population of the 30 cities compared: 9,579,449 people (Seoul 100 Statistics, 2026-03-31).

How this list is built

Every row is a published population observation measured in people, ranked highest first. The values were observed in 2026. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value. Only published cities with at least 20,000 residents and city-level observations qualify.

  • Compare the displayed value, unit, source date and geographic grain together.
  • A city label does not change a regional observation into a city measurement.
Rows
30 places
Geographic grain
city
Observation period
2026-03-31 to 2026-06-30
Last checked
2026-07-22
With an official source link
30 of 30

Cite this page

Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.

APA citation
ImmigrationDB. (2026, July 22). Largest cities in South Korea [ImmigrationDB compilation; version 9ddf65745fcb23eab9cc8894dfa957c4]. ImmigrationDB. https://immigrationdb.com/reports/south-korea-largest-cities/ Retrieved 2026-07-22. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/
BibTeX citation
@misc{immigrationdb_immigrationdb_largest-cities-in-south-korea_2d3700eb3ec1,
  author = {ImmigrationDB},
  title = {Largest cities in South Korea},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-07-22},
  version = {9ddf65745fcb23eab9cc8894dfa957c4},
  url = {https://immigrationdb.com/reports/south-korea-largest-cities/},
  note = {Retrieved 2026-07-22. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
Markdown citation
[Largest cities in South Korea](https://immigrationdb.com/reports/south-korea-largest-cities/) — ImmigrationDB; ImmigrationDB; version 9ddf65745fcb23eab9cc8894dfa957c4; retrieved 2026-07-22; built 2026-07-22.

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.

Sources

  1. Seoul 100 StatisticsSeoul Metropolitan Government · Checked 2026-07-22
  2. MOIS resident registration population by si/gun/gu, June 2026Ministry of the Interior and Safety, Republic of Korea · Checked 2026-07-22