| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Su-ch'on | city | Incheon | Korea, Republic of (South) | 37.72 | 126.36 | 400 | 4656 |
| Su-ch’on | city | Incheon | Korea, Republic of (South) | 37.72 | 126.36 | 400 | 4656 |
| Such'am | city | Incheon | Korea, Republic of (South) | 37.68 | 126.63 | 13 | 62442 |
| Such'am-ni | city | Incheon | Korea, Republic of (South) | 37.68 | 126.63 | 13 | 62442 |
| Suchon | city | Incheon | Korea, Republic of (South) | 37.72 | 126.36 | 400 | 4656 |
| Such’am | city | Incheon | Korea, Republic of (South) | 37.68 | 126.63 | 13 | 62442 |
| Such’am-ni | city | Incheon | Korea, Republic of (South) | 37.68 | 126.63 | 13 | 62442 |
| Sujŏm-ni | city | Incheon | Korea, Republic of (South) | 37.68 | 126.63 | 13 | 62442 |
| Sukkae | city | Incheon | Korea, Republic of (South) | 37.48 | 126.54 | 26 | 15909 |
| Sukkae | city | Incheon | Korea, Republic of (South) | 37.73 | 126.30 | 26 | 994 |
| Sukkogae | city | Incheon | Korea, Republic of (South) | 37.80 | 126.31 | 68 | 763 |
| Sulgam | city | Incheon | Korea, Republic of (South) | 37.73 | 126.47 | 154 | 11218 |
| Sungdo | city | Incheon | Korea, Republic of (South) | 37.59 | 126.62 | 0 | 91962 |
| Sunjidong | city | Incheon | Korea, Republic of (South) | 37.44 | 126.42 | 78 | 1958 |
| Sunmukgae | city | Incheon | Korea, Republic of (South) | 37.44 | 126.42 | 78 | 1958 |
| Sunmukkae | city | Incheon | Korea, Republic of (South) | 37.44 | 126.42 | 78 | 1958 |
| Sutgae | city | Incheon | Korea, Republic of (South) | 37.73 | 126.30 | 26 | 994 |
| Sutgogae | city | Incheon | Korea, Republic of (South) | 37.80 | 126.31 | 68 | 763 |
| Suwolha | city | Incheon | Korea, Republic of (South) | 37.79 | 126.44 | 62 | 7259 |
| Suyongso | city | Incheon | Korea, Republic of (South) | 37.53 | 126.67 | 42 | 393551 |