| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sek-kol | city | Gangwon | Korea, Republic of (South) | 37.26 | 129.09 | 2030 | 11455 |
| Sek-kol | city | Chungbuk | Korea, Republic of (South) | 36.41 | 127.81 | 830 | 7774 |
| Sekiho-ri | city | Gyeongbuk | Korea, Republic of (South) | 37.05 | 129.06 | 2509 | 3924 |
| Sekijo-ri | city | Gyeongbuk | Korea, Republic of (South) | 36.78 | 128.32 | 1108 | 4929 |
| Sekijō | city | Gyeonggi | Korea, Republic of (South) | 37.97 | 126.93 | 269 | 8180 |
| Sekiken-ri | city | Jeonnam | Korea, Republic of (South) | 34.50 | 126.32 | 200 | 8986 |
| Sekikoku-ri | city | Gyeonggi | Korea, Republic of (South) | 37.44 | 127.75 | 830 | 9374 |
| Sekikyori | city | Gangwon | Korea, Republic of (South) | 37.83 | 128.83 | 19 | 31588 |
| Sekimon-ri | city | Jeonnam | Korea, Republic of (South) | 34.53 | 126.72 | 22 | 7602 |
| Sekisanri | city | Chungnam | Korea, Republic of (South) | 36.48 | 127.31 | 131 | 13271 |
| Sekitoku | city | Gyeongnam | Korea, Republic of (South) | 34.93 | 128.43 | 26 | 35065 |
| Sekkei | city | Korea, Republic of (South) | 35.10 | 126.43 | 0 | 7218 | |
| Sekkei-ri | city | Gyeongnam | Korea, Republic of (South) | 35.42 | 129.07 | 354 | 36453 |
| Sekkenri | city | Jeonnam | Korea, Republic of (South) | 34.50 | 126.32 | 200 | 8986 |
| Sekkoku | city | Gyeonggi | Korea, Republic of (South) | 37.44 | 127.75 | 830 | 9374 |
| Sekkyo-ri | city | Jeonnam | Korea, Republic of (South) | 34.63 | 126.81 | 101 | 8948 |
| Sekkyo-ri | city | Jeonnam | Korea, Republic of (South) | 34.62 | 126.33 | 52 | 5959 |
| Sekkyo-ri | city | Jeonnam | Korea, Republic of (South) | 34.41 | 126.19 | 183 | 9360 |
| Sekkyo-ri | city | Gangwon | Korea, Republic of (South) | 37.83 | 128.83 | 19 | 31588 |
| Sekokoku | city | Korea, Republic of (South) | 34.85 | 128.57 | 0 | 35690 |