| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Seo-chon | city | Incheon | Korea, Republic of (South) | 37.75 | 126.40 | 830 | 7847 |
| Seo-dong | city | Gyeonggi | Korea, Republic of (South) | 37.15 | 127.03 | 85 | 150220 |
| Seo-gol | city | Gyeonggi | Korea, Republic of (South) | 37.25 | 126.46 | 88 | 1906 |
| Seo-myeon | city | Incheon | Korea, Republic of (South) | 37.22 | 126.12 | 144 | 2064 |
| Seo-ri | city | Gyeonggi | Korea, Republic of (South) | 37.20 | 127.17 | 830 | 53382 |