Hanna, Utah

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Hanna, Utah
Unincorporated community
Hanna is located in Utah
Location within the state of Utah
Coordinates: 40°24′15″N 110°45′55″W / 40.40417°N 110.76528°W / 40.40417; -110.76528Coordinates: 40°24′15″N 110°45′55″W / 40.40417°N 110.76528°W / 40.40417; -110.76528
Country United States
State Utah
County Duchesne
Named for William P. Hanna
Elevation 6,765 ft (2,062 m)
Time zone Mountain (MST) (UTC-7)
 • Summer (DST) MDT (UTC-6)
ZIP codes 84031
GNIS feature ID 1428509[1]
Historical population
Census Pop.
1920 263
1930 190 −27.8%
1940 220 15.8%
1950 193 −12.3%
Source: U.S. Census Bureau[2]

Hanna (also Defas Park) is an unincorporated community in western Duchesne County, Utah, United States, on the Uintah and Ouray Indian Reservation. It lies along State Route 35 northwest of the city of Duchesne, the county seat of Duchesne County.[3] Its elevation is 6,765 feet (2,062 m).[1] Although Hanna is unincorporated, it has a post office, with the ZIP code of 84031.[4] Hanna was named for its original postmaster, William P. Hanna.[5]


This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the Köppen Climate Classification system, Hanna has a humid continental climate, abbreviated "Dfb" on climate maps.[6]


  1. ^ a b "Hanna, Utah". Geographic Names Information System. United States Geological Survey. Retrieved 2008-04-12. 
  2. ^ "Census of Population and Housing". U.S. Census Bureau. Retrieved November 4, 2011. 
  3. ^ Rand McNally. The Road Atlas '08. Chicago: Rand McNally, 2008, pp. 102-103.
  4. ^ Zip Code Lookup
  5. ^ Van Cott, John W. (1990). Utah Place Names. Salt Lake City, Utah: University of Utah Press. p. 176. ISBN 0-87480-345-4. 
  6. ^ Climate Summary for Hanna, Utah