Foreign residents93,613peopleNaturalized citizens 10,165 people
Foreign resident share15.38%Of registered residents
Resident types
Ansan-si ranks 1st of 31 in Gyeonggi by foreign residents.
By residence type
As of September 2026Unit: %
Overseas Koreans 40.0%Other foreign nationals 33.9%Migrant workers 15.9%Marriage migrants 6.3%Foreign students 3.9%
| Type | People | Share |
|---|---|---|
| Overseas Koreans | 37,428 | 40% |
| Other foreign nationals | 31,744 | 33.9% |
| Migrant workers | 14,854 | 15.9% |
| Marriage migrants | 5,893 | 6.3% |
| Foreign students | 3,694 | 3.9% |
Overseas Koreans are the largest group at 37,428.
Age structure
By age group
As of September 2026| Age group | People | Share |
|---|---|---|
| Under 10 | 5,736 | 6.1% |
| 10s | 4,908 | 5.2% |
| 20s | 12,354 | 13.2% |
| 30s | 21,445 | 22.9% |
| 40s | 18,408 | 19.7% |
| 50s | 16,614 | 17.7% |
| 60s | 10,662 | 11.4% |
| 70+ | 3,486 | 3.7% |
Residents in their 30s are the largest age group at 21,445.
Foreign resident ranking
Foreign residents by region
As of September 2026| Region | Share | |
|---|---|---|
| Sangnok-gu | 27,432 | 29.3% |
| Danwon-gu | 66,181 | 70.7% |
Sangnok-gu alone is home to 29.3% of all foreign residents in Ansan-si, Gyeonggi.
Frequently asked questionsβ
93,613 as of the 2026 survey, or 15.38% of its population.
Overseas Koreans form the largest group, at 37,428.
1st 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 π
- MOIS Survey of Foreign Residents by Local GovernmentKOGL Type 1 Β· 2026 survey Β· updated yearly