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Foreign Residents in Seongnam-si, Gyeonggi

Based on the MOIS local foreign resident survey, 2026

Foreign residents25,807peopleNaturalized citizens 3,424 people
Foreign resident share2.87%Of registered residents

Resident types

Seongnam-si ranks 9th of 31 in Gyeonggi by foreign residents.

By residence type

As of September 2026

Unit: %

Overseas Koreans 32.0%Other foreign nationals 28.2%Migrant workers 13.2%Marriage migrants 11.7%Foreign students 15.0%32.0%28.2%13.2%11.7%15.0%

Overseas Koreans 32.0%Other foreign nationals 28.2%Migrant workers 13.2%Marriage migrants 11.7%Foreign students 15.0%

TypePeopleShare
Overseas Koreans8,25932%
Other foreign nationals7,26528.2%
Migrant workers3,40513.2%
Marriage migrants3,01811.7%
Foreign students3,86015%

Overseas Koreans are the largest group at 8,259.

Age structure

By age group

As of September 2026
Age groupPeopleShare
Under 106522.5%
10s1,1354.4%
20s5,24620.3%
30s4,54817.6%
40s4,01115.5%
50s5,06719.6%
60s3,96115.3%
70+1,1874.6%

Residents in their 20s are the largest age group at 5,246.

Foreign resident ranking

Foreign residents by region

As of September 2026
RegionShare
Bundang-gu4,86018.8%
Sujeong-gu16,66164.6%
Jungwon-gu4,28616.6%

Bundang-gu alone is home to 18.8% of all foreign residents in Seongnam-si, Gyeonggi.

Frequently asked questions❓

25,807 as of the 2026 survey, or 2.87% of its population.
Overseas Koreans form the largest group, at 8,259.
9th out of 31.
The 2026 edition of the annual local foreign resident survey by Korea's Ministry of the Interior and Safety. Population figures come from monthly resident registration data, so the two have different reference dates.

Sources 🌐