| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ongjakgol | city | Incheon | Korea, Republic of (South) | 37.69 | 126.45 | 324 | 9064 |
| Ongjang | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.97 | 125.39 | 262 | 21144 |
| Ongjang-dong | city | P'yongyang | Korea, Dem. Peoples Rep. of (North) | 39.12 | 125.76 | 121 | 355088 |
| Ongjang-dong | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 40.76 | 125.77 | 1669 | 5503 |
| Ongjang-dong | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.95 | 125.06 | 226 | 13064 |
| Ongjang-dong | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 41.28 | 126.64 | 1709 | 7546 |
| Ongjang-dong | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 41.05 | 126.68 | 1774 | 7599 |
| Ongjang-dong | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.95 | 125.26 | 272 | 20189 |
| Ongjang-gol | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.60 | 127.51 | 1935 | 6996 |
| Ongjang-gol | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.84 | 127.68 | 1797 | 13144 |
| Ongjang-gol | city | Gangwon | Korea, Republic of (South) | 37.50 | 128.24 | 1843 | 228 |
| Ongjang-gol | city | Gangwon | Korea, Republic of (South) | 37.64 | 128.57 | 1876 | 1058 |
| Ongjang-kol | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.60 | 127.51 | 1935 | 6996 |
| Ongjang-kol | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.84 | 127.68 | 1797 | 13144 |
| Ongjanggol | city | P'yongyang | Korea, Dem. Peoples Rep. of (North) | 39.12 | 125.76 | 121 | 355088 |
| Ongjeong | city | Gyeonggi | Korea, Republic of (South) | 37.04 | 127.02 | 52 | 100594 |
| Ongjeongni | city | Gangwon | Korea, Republic of (South) | 37.22 | 128.35 | 938 | 15124 |
| Ongjidok | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 41.05 | 126.79 | 2509 | 7599 |
| Ongjil-lodongjagu | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.96 | 125.37 | 154 | 21346 |
| Ongjin | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.93 | 125.36 | 39 | 20795 |
| Ongjin Airport | airport | 37.93 | 125.42 | 167 | 0 | ||
| Ongjin-ŭp | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.93 | 125.36 | 39 | 20795 |
| Ongjom | city | P'yongnam | Korea, Dem. Peoples Rep. of (North) | 39.09 | 125.42 | 213 | 26406 |
| Ongjom | city | P'yongyang | Korea, Dem. Peoples Rep. of (North) | 39.09 | 125.87 | 59 | 280591 |
| Ongjom | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 39.06 | 127.58 | 830 | 16035 |
| Ongjom | city | Gyeongbuk | Korea, Republic of (South) | 36.47 | 129.07 | 925 | 4149 |
| Ongjom-dong | city | Hwangbuk | Korea, Dem. Peoples Rep. of (North) | 38.40 | 125.83 | 78 | 22350 |
| Ongjom-ni | city | Jeonnam | Korea, Republic of (South) | 34.70 | 126.57 | 9 | 11970 |
| Ongjom-ni | city | Jeonnam | Korea, Republic of (South) | 34.82 | 126.68 | 9 | 13459 |
| Ongjomch'on | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 38.01 | 125.53 | 82 | 18083 |
| Ongjong | city | Incheon | Korea, Republic of (South) | 37.63 | 126.68 | 39 | 178129 |
| Ongjong-ni | city | Gangwon | Korea, Republic of (South) | 37.22 | 128.35 | 938 | 15124 |
| Ongju-gol | city | Hwangbuk | Korea, Dem. Peoples Rep. of (North) | 38.26 | 126.36 | 147 | 22350 |
| Ongju-gol | city | Gyeongbuk | Korea, Republic of (South) | 36.67 | 129.39 | 830 | 4692 |
| Ongjup'o | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.47 | 127.26 | 1256 | 11270 |
| Ongjup’o | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 38.47 | 127.26 | 1256 | 11270 |
| Ongjŏm | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 39.05 | 127.54 | 830 | 15724 |
| Ongjŏm-dong | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 37.93 | 125.07 | 118 | 16499 |
| Ongjŏm-dong | city | Gyeongbuk | Korea, Republic of (South) | 36.47 | 129.07 | 925 | 4149 |
| Ongjŏm-dong | city | Gangwon | Korea, Republic of (South) | 37.16 | 129.24 | 830 | 0 |
| Ongjŏm-ni | city | Kangwon | Korea, Dem. Peoples Rep. of (North) | 39.05 | 127.38 | 400 | 12253 |
| Ongjŏm-ni | city | Gyeongbuk | Korea, Republic of (South) | 36.48 | 129.07 | 954 | 4091 |
| Ongjŏmch’on | city | Hwangnam | Korea, Dem. Peoples Rep. of (North) | 38.01 | 125.53 | 82 | 18083 |
| Ongjŏng | city | Gyeonggi | Korea, Republic of (South) | 37.04 | 127.02 | 52 | 100594 |
| Ongjŏng-ni | city | Chungnam | Korea, Republic of (South) | 36.90 | 126.81 | 19 | 8136 |
| Ongjŏng-ni | city | Jeonbuk | Korea, Republic of (South) | 35.36 | 127.30 | 190 | 7718 |