| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Koyang | city | Gyeonggi | Korea, Republic of (South) | 37.66 | 126.83 | 75 | 323686 |
| Koyang-ni | city | Gyeonggi | Korea, Republic of (South) | 37.66 | 126.83 | 75 | 323686 |
| Koyawi | city | Gyeonggi | Korea, Republic of (South) | 37.98 | 126.86 | 121 | 8492 |
| Koyedo | city | Gyeonggi | Korea, Republic of (South) | 37.57 | 126.59 | 0 | 40037 |
| Koyo | city | Gyeonggi | Korea, Republic of (South) | 37.66 | 126.83 | 75 | 323686 |
| Koyuji | city | Gyeonggi | Korea, Republic of (South) | 37.24 | 126.59 | 0 | 3216 |