Foreign residents65,266peopleNaturalized citizens 7,664 people
Foreign resident share12.66%Of registered residents
Resident types
Siheung-si ranks 3rd of 31 in Gyeonggi by foreign residents.
By residence type
As of September 2026Unit: %
Overseas Koreans 36.9%Other foreign nationals 31.7%Migrant workers 20.8%Marriage migrants 7.9%Foreign students 2.7%
| Type | People | Share |
|---|---|---|
| Overseas Koreans | 24,108 | 36.9% |
| Other foreign nationals | 20,664 | 31.7% |
| Migrant workers | 13,595 | 20.8% |
| Marriage migrants | 5,151 | 7.9% |
| Foreign students | 1,748 | 2.7% |
Overseas Koreans are the largest group at 24,108.
Age structure
By age group
As of September 2026| Age group | People | Share |
|---|---|---|
| Under 10 | 3,054 | 4.7% |
| 10s | 2,329 | 3.6% |
| 20s | 8,129 | 12.5% |
| 30s | 17,601 | 27% |
| 40s | 13,588 | 20.8% |
| 50s | 11,076 | 17% |
| 60s | 7,034 | 10.8% |
| 70+ | 2,455 | 3.8% |
Residents in their 30s are the largest age group at 17,601.
Frequently asked questionsβ
65,266 as of the 2026 survey, or 12.66% of its population.
Overseas Koreans form the largest group, at 24,108.
3rd 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