| Name | Population | Altitude | Latitude | Longitude | 
Una : | 
 | 192 m | 36°5'49.9" N | 86°39'16.9" W | 
Unaka Springs : | 
 | 566 m | 36°5'51.0" N | 82°26'30.1" W | 
Underwood : | 
 | 255 m | 36°36'38.9" N | 85°59'12.8" W | 
Unicoi (Unicoi) : | 3 559 | 609 m | 36°11'43.1" N | 82°20'58.9" W | 
Union : | 
 | 533 m | 35°0'50.0" N | 84°48'40.0" W | 
Union Central : | 
 | 122 m | 35°57'51.8" N | 88°47'11.0" W | 
Union City (Union City) : | 10 732 | 103 m | 36°25'27.1" N | 89°3'24.8" W | 
Union Cross : | 
 | 166 m | 35°45'34.9" N | 88°27'16.9" W | 
Union Grove : | 
 | 273 m | 35°35'19.0" N | 84°7'59.2" W | 
Union Heights : | 
 | 396 m | 36°10'58.1" N | 83°14'55.0" W | 
Union Hill : | 
 | 274 m | 36°33'5.0" N | 85°41'46.0" W | 
Union Ridge : | 
 | 335 m | 35°30'37.1" N | 86°15'52.9" W | 
Union Temple : | 
 | 481 m | 36°17'53.2" N | 82°44'8.2" W | 
Union Valley : | 
 | 288 m | 35°55'14.2" N | 83°42'38.2" W | 
Unionville : | 
 | 216 m | 35°37'18.1" N | 86°35'33.0" W | 
Unitia : | 
 | 
 | 35°44'48.1" N | 84°10'46.9" W | 
Unity : | 
 | 150 m | 35°24'41.0" N | 88°9'23.0" W | 
University View : | 
 | 547 m | 35°11'35.2" N | 85°56'13.9" W | 
Upchurch : | 
 | 488 m | 36°14'31.9" N | 82°46'26.0" W | 
Upper Holly Creek : | 
 | 243 m | 35°6'36.0" N | 87°36'27.0" W | 
Upper Mockeson : | 
 | 244 m | 35°4'12.0" N | 87°18'7.9" W | 
Upper Shady : | 
 | 853 m | 36°30'15.1" N | 81°56'20.0" W | 
Upper Shell Creek : | 
 | 919 m | 36°10'3.0" N | 82°1'54.1" W | 
Upper Sinking : | 
 | 215 m | 35°40'0.8" N | 87°38'48.1" W | 
Upper Windrock : | 
 | 688 m | 36°5'30.8" N | 84°20'26.9" W | 
Uptonville : | 
 | 142 m | 35°27'16.9" N | 88°58'44.0" W | 
Utah : | 
 | 120 m | 35°35'25.1" N | 88°3'29.9" W | 
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