| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Seiho | city | Incheon | Korea, Republic of (South) | 37.70 | 126.37 | 118 | 4670 |
| Senae | city | Incheon | Korea, Republic of (South) | 37.63 | 126.45 | 337 | 6268 |
| Seo-chon | city | Incheon | Korea, Republic of (South) | 37.75 | 126.40 | 830 | 7847 |
| Seo-myeon | city | Incheon | Korea, Republic of (South) | 37.22 | 126.12 | 144 | 2064 |
| Seochon | city | Incheon | Korea, Republic of (South) | 37.71 | 126.32 | 42 | 1554 |
| Seochon | city | Incheon | Korea, Republic of (South) | 37.76 | 126.48 | 190 | 14675 |
| Seodumeori | city | Incheon | Korea, Republic of (South) | 37.64 | 126.48 | 141 | 7063 |
| Seodumul | city | Incheon | Korea, Republic of (South) | 37.59 | 126.52 | 65 | 11396 |
| Seogu-chon | city | Incheon | Korea, Republic of (South) | 37.63 | 126.41 | 200 | 4222 |
| Seoguchon | city | Incheon | Korea, Republic of (South) | 37.63 | 126.41 | 200 | 4222 |
| Seohyeon | city | Incheon | Korea, Republic of (South) | 37.64 | 126.60 | 91 | 67259 |
| Seokchon | city | Incheon | Korea, Republic of (South) | 37.75 | 126.40 | 830 | 7847 |
| Seokgokgol | city | Incheon | Korea, Republic of (South) | 37.62 | 126.40 | 830 | 3260 |
| Seokjeongdong | city | Incheon | Korea, Republic of (South) | 37.73 | 126.31 | 22 | 1434 |
| Seokkok-gol | city | Incheon | Korea, Republic of (South) | 37.62 | 126.40 | 830 | 3260 |
| Seomunan | city | Incheon | Korea, Republic of (South) | 37.70 | 126.44 | 118 | 9085 |
| Seomunbak | city | Incheon | Korea, Republic of (South) | 37.75 | 126.47 | 137 | 10513 |
| Seonchang | city | Incheon | Korea, Republic of (South) | 37.71 | 126.32 | 0 | 1632 |
| Seonchon | city | Incheon | Korea, Republic of (South) | 37.21 | 126.18 | 32 | 1082 |
| Seondu-ri | city | Incheon | Korea, Republic of (South) | 37.64 | 126.47 | 22 | 7421 |
| Seondu-ri | city | Incheon | Korea, Republic of (South) | 37.61 | 126.47 | 0 | 4235 |
| Seondupo | city | Incheon | Korea, Republic of (South) | 37.63 | 126.48 | 121 | 6391 |
| Seongnae | city | Incheon | Korea, Republic of (South) | 37.77 | 126.30 | 0 | 891 |
| Seongnam-dong | city | Incheon | Korea, Republic of (South) | 37.51 | 126.67 | 19 | 512282 |
| Seonhaengchon | city | Incheon | Korea, Republic of (South) | 37.73 | 126.46 | 190 | 9238 |
| Seonhwachon | city | Incheon | Korea, Republic of (South) | 37.72 | 126.47 | 177 | 11672 |
| Seonjuji | city | Incheon | Korea, Republic of (South) | 37.58 | 126.74 | 55 | 388332 |
| Seonjuji-dong | city | Incheon | Korea, Republic of (South) | 37.58 | 126.74 | 55 | 404524 |
| Seonjujidong | city | Incheon | Korea, Republic of (South) | 37.58 | 126.74 | 55 | 404524 |
| Seonmeol | city | Incheon | Korea, Republic of (South) | 37.78 | 126.31 | 0 | 928 |
| Seonsu | city | Incheon | Korea, Republic of (South) | 37.64 | 126.38 | 830 | 2561 |
| Seonwon | city | Incheon | Korea, Republic of (South) | 37.71 | 126.48 | 26 | 29744 |
| Seonyanggol | city | Incheon | Korea, Republic of (South) | 37.81 | 126.24 | 32 | 2691 |
| Seopo-ri | city | Incheon | Korea, Republic of (South) | 37.19 | 125.98 | 3 | 4301 |
| Seopo-ri | city | Incheon | Korea, Republic of (South) | 37.22 | 126.12 | 3 | 2064 |
| Seorwon | city | Incheon | Korea, Republic of (South) | 37.63 | 126.68 | 29 | 178129 |
| Seoun-dong | city | Incheon | Korea, Republic of (South) | 37.54 | 126.70 | 265 | 659954 |