| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Una | city | Tennessee | United States | 36.09722 | -86.65472 | 629 | 57140 |
| Unaka Springs | city | Tennessee | United States | 36.0975 | -82.44167 | 1856 | 7357 |
| Unaka Station historical | city | Tennessee | United States | 35.94361 | -82.9 | 1289 | 1202 |
| Underwood | city | Tennessee | United States | 36.61083 | -85.98694 | 741 | 2072 |
| Underwood | city | Tennessee | United States | 35.99722 | -83.63472 | 987 | 7823 |
| Underwood Springs historical | city | Tennessee | United States | 36.43333 | -82.17778 | 2290 | 7189 |
| Unicoi | city | Tennessee | United States | 36.19528 | -82.34972 | 2080 | 6964 |
| Union | city | Tennessee | United States | 35.58472 | -89.11944 | 400 | 906 |
| Union | city | Tennessee | United States | 35.71278 | -85.70111 | 1082 | 3897 |
| Union | city | Tennessee | United States | 35.01389 | -84.81111 | 800 | 4284 |
| Union | city | Tennessee | United States | 36.07083 | -84.48583 | 1299 | 3423 |
| Union | city | Tennessee | United States | 35.90222 | -84.42222 | 928 | 6618 |
| Union | city | Tennessee | United States | 36.34861 | -83.77028 | 1102 | 1887 |
| Union Central | city | Tennessee | United States | 35.96444 | -88.78639 | 400 | 4542 |
| Union City | city | Tennessee | United States | 36.42417 | -89.05694 | 337 | 10111 |
| Union Cross | city | Tennessee | United States | 35.75972 | -88.45472 | 577 | 1796 |
| Union Grove | city | Tennessee | United States | 35.59889 | -86.95528 | 649 | 5258 |
| Union Grove | city | Tennessee | United States | 35.085 | -84.79194 | 846 | 12759 |
| Union Grove | city | Tennessee | United States | 35.49833 | -84.76806 | 954 | 2639 |
| Union Grove | city | Tennessee | United States | 35.59722 | -84.57167 | 1095 | 3234 |
| Union Grove | city | Tennessee | United States | 35.58861 | -84.13306 | 895 | 2401 |
| Union Grove | city | Tennessee | United States | 35.7525 | -84.09306 | 1108 | 7725 |
| Union Grove | city | Tennessee | United States | 35.94389 | -83.54111 | 964 | 5591 |
| Union Heights | city | Tennessee | United States | 36.18278 | -83.24861 | 1299 | 13169 |
| Union Hill | city | Tennessee | United States | 35.08917 | -87.33278 | 898 | 2007 |
| Union Hill | city | Tennessee | United States | 36.33417 | -86.77917 | 698 | 11896 |
| Union Hill | city | Tennessee | United States | 36.55139 | -85.69611 | 954 | 1542 |
| Union Hill | city | Tennessee | United States | 36.23472 | -85.63278 | 984 | 2297 |
| Union Hill | city | Tennessee | United States | 36.29583 | -85.32722 | 1338 | 3403 |
| Union Hill | city | Tennessee | United States | 35.88944 | -83.55 | 997 | 10327 |
| Union Ridge | city | Tennessee | United States | 35.51028 | -86.26472 | 994 | 2228 |
| Union Temple | city | Tennessee | United States | 36.29806 | -82.73556 | 1597 | 2844 |
| Union Valley | city | Tennessee | United States | 35.92056 | -83.71056 | 1099 | 10433 |
| Unionville | city | Tennessee | United States | 35.95167 | -89.43611 | 324 | 3274 |
| Unionville | city | Tennessee | United States | 35.62167 | -86.5925 | 705 | 1963 |
| Unitia | city | Tennessee | United States | 35.74667 | -84.17972 | 902 | 5168 |
| Unity | city | Tennessee | United States | 35.41139 | -88.15639 | 498 | 1049 |
| Unity | city | Tennessee | United States | 36.47861 | -85.32528 | 1122 | 2401 |
| University View | city | Tennessee | United States | 35.19306 | -85.93722 | 1853 | 1776 |
| Upchurch | city | Tennessee | United States | 36.24222 | -82.77389 | 1679 | 7447 |
| Upper Holly Creek | city | Tennessee | United States | 35.11 | -87.6075 | 698 | 1410 |
| Upper Mockeson | city | Tennessee | United States | 35.07 | -87.30222 | 800 | 1682 |
| Upper Shady | city | Tennessee | United States | 36.5025 | -81.93972 | 2887 | 1793 |
| Upper Shady | city | Tennessee | United States | 36.50417 | -81.93889 | 2798 | 1793 |
| Upper Shell Creek | city | Tennessee | United States | 36.1675 | -82.03167 | 3402 | 2833 |
| Upper Sinking | city | Tennessee | United States | 35.66694 | -87.64667 | 761 | 669 |
| Upper Windrock | city | Tennessee | United States | 36.09194 | -84.34083 | 1528 | 3216 |
| Uptonville | city | Tennessee | United States | 35.45472 | -88.97889 | 396 | 1276 |
| Utah | city | Tennessee | United States | 35.59028 | -88.05833 | 472 | 1378 |
| Utley historical | city | Tennessee | United States | 35.76917 | -88.55361 | 498 | 1380 |
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