| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ualik (historical) | city | Alaska | United States | 58.92 | -159.75 | 91 | |
| Uchitak (historical) | city | Alaska | United States | 63.62 | -161.00 | 196 | |
| Uganik | city | Alaska | United States | 57.77 | -153.40 | 0 | |
| Ugashik | city | Alaska | United States | 57.51 | -157.40 | 16 | |
| Ugiatok (historical) | city | Alaska | United States | 52.42 | 173.58 | 364 | |
| Uglovaia (historical) | city | Alaska | United States | 61.88 | -162.08 | 275 | |
| Ugtikun (historical) | city | Alaska | United States | 52.42 | 173.58 | 364 | |
| Ugtumuk (historical) | city | Alaska | United States | 52.42 | 173.58 | 364 | |
| Uhaiak (historical) | city | Alaska | United States | 57.00 | -153.92 | 875 | |
| Uhaskek (historical) | city | Alaska | United States | 57.40 | -152.63 | 203 | |
| Uinuk (historical) | city | Alaska | United States | 64.48 | -165.30 | 0 | |
| Ukak | city | Alaska | United States | 60.73 | -164.93 | 830 | |
| Ukashik (historical) | city | Alaska | United States | 52.42 | 173.58 | 364 | |
| Ukhvigchagvag (historical) | city | Alaska | United States | 61.50 | -157.00 | 196 | |
| Ukivok | city | Alaska | United States | 64.98 | -168.06 | 3 | |
| Uknavik | city | Alaska | United States | 61.34 | -160.62 | 32 | |
| Uknodok (historical) | city | Alaska | United States | 53.90 | -166.57 | 0 | |
| Ukodlint (historical) | city | Alaska | United States | 64.45 | -163.00 | 0 | |
| Ukshivik (historical) | city | Alaska | United States | 57.18 | -153.37 | 3 | |
| Ukuk (historical) | city | Alaska | United States | 60.50 | -165.00 | 0 | |
| Ulezara (historical) | city | Alaska | United States | 67.00 | -163.00 | 0 | |
| Ulokak (historical) | city | Alaska | United States | 61.55 | -158.60 | 150 | |
| Ulukuk (historical) | city | Alaska | United States | 63.92 | -160.25 | 75 | |
| Ulġuniq | city | Alaska | United States | 70.64 | -160.04 | 3 | |
| Umiat | city | Alaska | United States | 69.37 | -152.14 | 262 | |
| Umkumiute | city | Alaska | United States | 60.50 | -165.20 | 0 | |
| Umnak | city | Alaska | United States | 53.27 | -168.22 | 6 | |
| Umnak Village | city | Alaska | United States | 52.94 | -168.87 | 98 | |
| Umnokalukta (historical) | city | Alaska | United States | 66.92 | -157.50 | 91 | |
| Unakak (historical) | city | Alaska | United States | 60.90 | -164.80 | 0 | |
| Unalakleet | city | Alaska | United States | 63.87 | -160.79 | 3 | |
| Unalaska | city | Alaska | United States | 53.87 | -166.54 | 98 | |
| Unalga (historical) | city | Alaska | United States | 53.98 | -166.17 | 242 | |
| Unangashik (historical) | city | Alaska | United States | 56.83 | -158.95 | 3 | |
| Unga | city | Alaska | United States | 55.18 | -160.51 | 0 | |
| Ungalik (historical) | city | Alaska | United States | 64.55 | -160.88 | 45 | |
| Ungalikthluk | city | Alaska | United States | 58.94 | -160.15 | 49 | |
| Unguchiing (historical) | city | Alaska | United States | 52.05 | -175.04 | 137 | |
| Union City (historical) | city | Alaska | United States | 66.58 | -151.93 | 830 | |
| Unnatak (historical) | city | Alaska | United States | 67.10 | -157.80 | 82 | |
| Usibelli | city | Alaska | United States | 63.86 | -148.78 | 2522 | |
| Utqiaġvik | city | Alaska | United States | 71.29 | -156.79 | 16 | |
| Utukakarvik | city | Alaska | United States | 61.96 | -164.75 | 3 | |
| Uusenkaaq | city | Alaska | United States | 57.92 | -152.50 | 0 | |
| Uyak | city | Alaska | United States | 57.64 | -154.00 | 3 | |
| Uzinki | city | Alaska | United States | 57.92 | -152.50 | 0 | |
| Uŋalaqłiq | city | Alaska | United States | 63.87 | -160.79 | 3 |