| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sema-dong | city | Gyeonggi | Korea, Republic of (South) | 37.18 | 127.03 | 213 | 236924 |
| Sema-ri | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.57 | 125.26 | 39 | 24098 |
| Sema-ri | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 38.21 | 125.17 | 167 | 20981 |