| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Masal-li | city | Gyeonggi | Korea, Republic of (South) | 37.23 | 126.69 | 68 | 4112 |
| Masan | city | Gyeonggi | Korea, Republic of (South) | 37.92 | 127.00 | 830 | 28954 |
| Masan | city | Gyeonggi | Korea, Republic of (South) | 37.61 | 127.20 | 65 | 158906 |
| Masan | city | Gyeonggi | Korea, Republic of (South) | 37.61 | 127.20 | 114 | 158906 |
| Masan | city | Gyeonggi | Korea, Republic of (South) | 37.94 | 127.30 | 830 | 18677 |
| Masan-ni | city | Gyeonggi | Korea, Republic of (South) | 37.23 | 126.69 | 68 | 4112 |
| Masan-ni | city | Gyeonggi | Korea, Republic of (South) | 37.85 | 127.19 | 400 | 24431 |
| Masandong | city | Gyeonggi | Korea, Republic of (South) | 37.08 | 126.80 | 45 | 7125 |
| Masandong | city | Gyeonggi | Korea, Republic of (South) | 37.83 | 126.82 | 95 | 22350 |
| Masanggul | city | Gyeonggi | Korea, Republic of (South) | 37.66 | 126.83 | 75 | 316047 |
| Masanp'o | city | Gyeonggi | Korea, Republic of (South) | 37.24 | 126.67 | 68 | 2760 |
| Masanp’o | city | Gyeonggi | Korea, Republic of (South) | 37.24 | 126.67 | 68 | 2760 |
| Masekigu-ri | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Masekigū | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Maseogu-ri | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Maseokdong | city | Gyeonggi | Korea, Republic of (South) | 37.93 | 126.82 | 49 | 16268 |
| Maseokuri | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Maseong-dong | city | Gyeonggi | Korea, Republic of (South) | 37.28 | 127.19 | 393 | 119352 |
| Maseongwon | city | Gyeonggi | Korea, Republic of (South) | 37.22 | 127.06 | 154 | 441158 |
| Masogu | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Masok | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Masongwon | city | Gyeonggi | Korea, Republic of (South) | 37.22 | 127.06 | 154 | 441158 |
| Masŏgu-ri | city | Gyeonggi | Korea, Republic of (South) | 37.65 | 127.32 | 830 | 81702 |
| Masŏk-tong | city | Gyeonggi | Korea, Republic of (South) | 37.93 | 126.82 | 49 | 16268 |
| Masŏng-dong | city | Gyeonggi | Korea, Republic of (South) | 37.28 | 127.19 | 393 | 119352 |