| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oya-gol | city | Chungnam | Korea, Republic of (South) | 36.31 | 126.94 | 16 | 33416 |
| Oyagol | city | Chungnam | Korea, Republic of (South) | 36.45 | 127.16 | 104 | 55974 |
| Oyak-kol | city | Chungnam | Korea, Republic of (South) | 36.36 | 126.62 | 830 | 47888 |
| Oyan-mal | city | Chungnam | Korea, Republic of (South) | 36.40 | 126.73 | 830 | 8968 |
| Oyangsil | city | Chungnam | Korea, Republic of (South) | 36.19 | 127.30 | 830 | 202115 |
| Oyatgoji | city | Chungnam | Korea, Republic of (South) | 36.67 | 127.20 | 232 | 24800 |