| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 고일 | city | Gangwon | Korea, Republic of (South) | 37.35 | 128.20 | 1669 | 0 |
| 고일 | city | Gangwon | Korea, Republic of (South) | 37.30 | 128.77 | 2572 | 2980 |
| 고일 | city | Chungnam | Korea, Republic of (South) | 36.78 | 126.32 | 68 | 26827 |
| 고일동 | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 38.45 | 125.37 | 118 | 28892 |
| 고일치 | city | Gangwon | Korea, Republic of (South) | 37.35 | 128.18 | 1669 | 0 |