Unicoi County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 17,928. Its county seat is Erwin. Unicoi is a Cherokee word meaning "white," "hazy," "fog-like," or "fog draped," and refers to the mist often seen in the foothills and mountains of this far northeast county. Unicoi County is part of the Johnson City Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area, commonly known as the "Tri-Cities" region.
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Named for | Cherokee word for "fog-draped" or "hazy"
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Founded | March 23, 1875
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Area:Total | 186 sq mi (480 km)
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Area:Land | 186 sq mi (480 km)
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Area:Water | 0.3 sq mi (0.8 km) 0.2%%
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Population:Estimate | 17,761
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Population:Density | 98/sq mi (38/km)
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