| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| U-ch'on | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.4530556 | 128.8238889 | 22 | 18299 |
| Uaech'on | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.5041667 | 128.8397222 | 32 | 18303 |
| Udang-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.49 | 127.3611111 | 3 | 18574 |
| Uisong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4991667 | 127.3083333 | 6 | 18586 |
| Ujang-gol | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5597222 | 127.3327778 | 65 | 18564 |
| Ujang-kol | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5597222 | 127.3327778 | 65 | 18564 |
| Ujung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0697222 | 128.0233333 | 223 | 18428 |
| Ukkama-gol | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6166667 | 128.6 | 2513 | 18281 |
| Umdal | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.68 | 127.2833333 | 121 | 18530 |
| Umdalmal | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7094444 | 126.8788889 | 921 | 18519 |
| Ump'yong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.8577778 | 128.5477778 | 2732 | 18211 |
| Un'gok | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3866667 | 126.8172222 | 2719 | 18613 |
| Un'gok-nodongjagu | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3866667 | 126.8172222 | 2719 | 18613 |
| Un'gong-nodongjagu | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3866667 | 126.8172222 | 2719 | 18613 |
| Unbong | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5075 | 127.4183333 | 6 | 18575 |
| Unbong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5236111 | 127.3455556 | 6 | 18575 |
| Unbong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8513889 | 127.4127778 | 6 | 18484 |
| Unbong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5075 | 127.4183333 | 6 | 18575 |
| Unch'ol-li | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6019444 | 128.9655556 | 246 | 18270 |
| Unch'on-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6019444 | 128.9655556 | 246 | 18270 |
| Unch'ŏl-li | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6019444 | 128.9655556 | 246 | 18270 |
| Unch'ŏn-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6019444 | 128.9655556 | 246 | 18270 |
| Undo-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8347222 | 127.6827778 | 0 | 13383 |
| Undong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8977778 | 127.4316667 | 29 | 18474 |
| Undong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8347222 | 127.6827778 | 0 | 13383 |
| Undong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.9425 | 127.8430556 | 39 | 13537 |
| Undong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0636111 | 128.115 | 32 | 18428 |
| Undō-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8347222 | 127.6827778 | 0 | 13383 |
| Ungbong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.5075 | 127.4183333 | 6 | 18575 |
| Ungdo-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.2713889 | 127.6230556 | 0 | 810 |
| Ungjon | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.95 | 128.85 | 4288 | 18186 |
| Ungmaeban | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.95 | 128.8580556 | 4212 | 18186 |
| Ungmaebat | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.95 | 128.8580556 | 4212 | 18186 |
| Unha-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.1638889 | 128.1591667 | 518 | 18404 |
| Unhak-tong | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 41.1438889 | 128.7063889 | 4911 | 14483 |
| Unhung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.6269444 | 127.4083333 | 6 | 18540 |
| Unhung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8961111 | 127.4352778 | 29 | 18474 |
| Unhung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7458333 | 127.4425 | 19 | 18155 |
| Unhung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.7280556 | 128.7291667 | 2188 | 18246 |
| Unhŭng-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.8961111 | 127.4352778 | 29 | 18474 |
| Unhŭng-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.7458333 | 127.4425 | 19 | 18155 |
| Unjong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.8772222 | 128.8094444 | 3323 | 18201 |
| Unjujang | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.4819444 | 128.8986111 | 341 | 17891 |
| Unp'o | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0541667 | 128.0827778 | 134 | 18428 |
| Unp'o-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0541667 | 128.0827778 | 134 | 18428 |
| Unp'o-rodongjagu | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0541667 | 128.0827778 | 134 | 18428 |
| Unsang-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0822222 | 128.0361111 | 265 | 18428 |
| Unsho-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.85 | 128.85 | 1722 | 18208 |
| Unshō-ri | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.85 | 128.85 | 1722 | 18208 |
| Unsong-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.85 | 128.85 | 1722 | 18208 |
| Unsung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.5922222 | 128.8166667 | 324 | 18281 |
| Unsung-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6297222 | 128.8308333 | 1341 | 18270 |
| Unsŭng-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.5922222 | 128.8166667 | 324 | 18281 |
| Unsŭng-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.6297222 | 128.8308333 | 1341 | 18270 |
| Unt'o | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3030556 | 126.8505556 | 1774 | 21139 |
| Unt'ŏ | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.3030556 | 126.8505556 | 1774 | 21139 |
| Up'o | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 39.4883333 | 127.4858333 | 6 | 15501 |
| Usang-ni | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.0822222 | 128.0361111 | 265 | 18428 |
| Ut-ch'on | city | Hamgyong-namdo | Korea, Dem. Peoples Rep. of (North) | 40.3522222 | 128.7241667 | 91 | 12360 |