| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sejang | city | Gyeongbuk | Korea, Republic of (South) | 36.55 | 129.03 | 830 | 3535 |
| Sejang-gol | city | Gyeongbuk | Korea, Republic of (South) | 36.46 | 128.60 | 830 | 3800 |
| Sejang-gol | city | Gyeongbuk | Korea, Republic of (South) | 36.70 | 128.72 | 879 | 7453 |
| Sejang-ni | city | Gyeongbuk | Korea, Republic of (South) | 36.56 | 129.04 | 830 | 3392 |
| Seje | city | Gyeongbuk | Korea, Republic of (South) | 36.80 | 129.43 | 203 | 5051 |
| Sejeongi | city | Gyeonggi | Korea, Republic of (South) | 37.14 | 127.48 | 344 | 8344 |
| Seji | city | Jeonnam | Korea, Republic of (South) | 34.94 | 126.73 | 52 | 20678 |
| Sejil-li | city | Gyeongnam | Korea, Republic of (South) | 35.54 | 128.41 | 111 | 12753 |
| Sejilmok | city | Chungnam | Korea, Republic of (South) | 36.67 | 126.30 | 19 | 5861 |
| Sejimmae | city | Gyeonggi | Korea, Republic of (South) | 37.42 | 127.62 | 341 | 9629 |
| Sejimmae | city | Chungnam | Korea, Republic of (South) | 36.78 | 126.79 | 3 | 14556 |
| Sejin | city | Gyeongnam | Korea, Republic of (South) | 35.54 | 128.42 | 167 | 13324 |
| Sejipdam | city | Chungbuk | Korea, Republic of (South) | 37.00 | 127.58 | 400 | 16601 |
| Sejipmae | city | Gyeonggi | Korea, Republic of (South) | 37.42 | 127.62 | 341 | 9629 |
| Sejol-li | city | Jeonbuk | Korea, Republic of (South) | 35.32 | 127.32 | 167 | 6868 |
| Sejom | city | Gyeongbuk | Korea, Republic of (South) | 36.90 | 129.26 | 1161 | 6412 |
| Sejon-ni | city | Jeonnam | Korea, Republic of (South) | 34.54 | 126.54 | 114 | 14991 |
| Sejon-ni | city | Jeonbuk | Korea, Republic of (South) | 35.32 | 127.32 | 167 | 6868 |
| Seju-gol | city | Gyeonggi | Korea, Republic of (South) | 37.45 | 127.58 | 314 | 9960 |
| Sejuk | city | Ulsan | Korea, Republic of (South) | 35.47 | 129.35 | 3 | 213981 |
| Sejung | city | Chungbuk | Korea, Republic of (South) | 36.39 | 127.84 | 830 | 7597 |
| Sejung-ni | city | Chungbuk | Korea, Republic of (South) | 36.39 | 127.84 | 830 | 7597 |
| Sejŏn | city | Jeonbuk | Korea, Republic of (South) | 35.32 | 127.32 | 167 | 6868 |
| Sejŏngi | city | Gyeonggi | Korea, Republic of (South) | 37.14 | 127.48 | 344 | 8344 |
| Sejŏngji | city | Gyeongbuk | Korea, Republic of (South) | 35.95 | 128.29 | 206 | 8344 |