| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sep'abal | city | P'yongbuk | Korea, Dem. Peoples Rep. of (North) | 39.84 | 124.82 | 75 | 20716 |
| Sep'ai-gol | city | Chungnam | Korea, Republic of (South) | 36.78 | 126.87 | 164 | 36223 |
| Sep'e | city | Georgia | 42.43 | 44.57 | 4350 | 894 | |
| Sep'i-dong | city | Hwangbuk | Korea, Dem. Peoples Rep. of (North) | 38.59 | 126.67 | 830 | 14699 |
| Sep'iet'i | city | Samegrelo-Zemo Svaneti | Georgia | 42.28 | 42.24 | 196 | 6277 |
| Sep'o | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.64 | 127.36 | 1876 | 6407 |
| Sep'o | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 39.89 | 127.85 | 3 | 42875 |
| Sep'o | city | Gyeongbuk | Korea, Republic of (South) | 36.96 | 129.42 | 0 | 3517 |
| Sep'o | city | Jeonnam | Korea, Republic of (South) | 34.64 | 127.63 | 3 | 19755 |
| Sep'o | city | Jeonnam | Korea, Republic of (South) | 34.42 | 126.10 | 278 | 3802 |
| Sep'o | city | Jeonnam | Korea, Republic of (South) | 34.67 | 125.45 | 0 | 2900 |
| Sep'o | city | Jeonnam | Korea, Republic of (South) | 34.42 | 127.07 | 0 | 2566 |
| Sep'o | city | Jeonnam | Korea, Republic of (South) | 34.34 | 126.86 | 118 | 4124 |
| Sep'o | city | Gangwon | Korea, Republic of (South) | 37.15 | 127.82 | 377 | 11797 |
| Sep'o-dong | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 39.59 | 126.08 | 830 | 41034 |
| Sep'o-dong | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 40.20 | 126.98 | 3359 | 20285 |
| Sep'o-dong | city | Gyeongbuk | Korea, Republic of (South) | 36.96 | 129.42 | 0 | 3517 |
| Sep'o-mokchang | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.64 | 127.37 | 1945 | 6407 |
| Sep'o-ri | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.64 | 127.36 | 1876 | 6407 |
| Sep'o-ri | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 39.89 | 127.85 | 3 | 42875 |
| Sep'o-ri | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.86 | 127.42 | 830 | 23744 |
| Sep'o-ri | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 38.83 | 125.50 | 91 | 60175 |
| Sep'o-ri | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.55 | 127.23 | 1145 | 9081 |
| Sep'o-ri | city | Jeonnam | Korea, Republic of (South) | 34.42 | 126.10 | 278 | 3802 |
| Sep'o-ri | city | Gyeongnam | Korea, Republic of (South) | 34.82 | 128.39 | 830 | 61494 |
| Sep'o-up | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.64 | 127.36 | 1876 | 6407 |
| Sep'ung-ni | city | Jeonnam | Korea, Republic of (South) | 34.95 | 127.58 | 22 | 70997 |
| Sep'yong | city | Chungbuk | Korea, Republic of (South) | 36.85 | 127.82 | 347 | 12367 |
| Sep'yong-ni | city | Chungbuk | Korea, Republic of (South) | 36.85 | 127.82 | 347 | 12367 |