Unicoi County, Tennessee

Unicoi County: County in Tennessee, United States


Unicoi County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 18,313 and a population density of 38 people per km². After 10 years in 2020 county had an estimated population of 17,755 inhabitants. Its county seat is Erwin. The county was created 148 years ago in 1875.

Quick Facts about Unicoi County

Population : 17,755 (2020)
Country : United States of America
State : Tennessee (United States)
Area : 483 km2
Water as percent of area : 0.2%
Land as percent of area : 99.8%
Named for : Cherokee
Altitude : 1,991 feet / 607 meters
Capital : Erwin
Establishment : March 03, 1875
Time Zone : Eastern Time Zone
Local time : 10:46:51 (4th June 2023)
Density : 37 Pop. per km² as of 2020
Population growth : -3.14% (2010-2020)
Unicoi County locator map
Location of Unicoi County on Tennessee map.
Unicoi-county-courthouse-tn1 image
Unicoi-county-courthouse-tn1 image


Unicoi County is located at 36°6'39"N 82°25'56"W (36.1108200, -82.4322400). It has 5 neighbors: Mitchell County, Greene County, Madison County, Yancey County and Washington County.

Unicoi County map

The largest city of Unicoi County is Erwin with a population of 5,854. Other cities include and Unicoi population 3,579. See all Unicoi County cities & populated places.

Unicoi County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Unicoi County.

City Name Population Title
Erwin 5,854 Human settlement in Tennessee, United States of America
Unicoi 3,579 City in Unicoi County, Tennessee, United States of America

Unicoi County has 5 neighbours.

  • Erwin


According to census records, the population of Unicoi County decreased by 3.14% in 10 years.

Year Population % Change Method
2010 18,313 - census
2011 18,302 -0.06% estimation process
2012 18,253 -0.27% estimation process
2013 18,095 -0.87% estimation process
2014 17,951 -0.8% estimation process
2015 17,819 -0.74% estimation process
2016 17,737 -0.46% estimation process
2017 17,796 0.33% estimation process
2018 17,822 0.15% estimation process
2019 17,883 0.34% estimation process
2020 17,755 -0.72% estimation process

Comitatul Unicoi, Comte d'Unicoi, Comte dUnicoi, Comté d'Unicoi, Comté dUnicoi, Condado de Unicoi, Condado han Unicoi, Contea di Unicoi, Hrabstwo Unicoi, Junikoj, Okrug Junikoj, Quan Unicoi, Quận Unicoi, Unicoi, Unicoi Comitatus, Unicoi Kun, Unicoi Kūn, Unicoi konderria, Unicoi megye, i'uniko'i ka'unti, shhrstan wnykwy tnsy, you ni ke yi xian, yunikoi jun, Округ Јуникој, Юникой, Юнікой, Յունիքոյի շրջան, شهرستان ونیکوی، تنسی, یونیکوئی کاؤنٹی, یونیکوئی کاؤنٹی، ٹینیسی, ইউনিকোই কাউন্টি, ユニコイ郡, 尤尼科伊縣

People born in Unicoi County (2)

People born in Unicoi County, including politician John Q. Tilson, politician James Jefferson Britt, .


Tennessee Other Counties (more counties)

County Name Population Title
Shelby County 936,017 County in Tennessee, United States
Davidson County 694,176 County in Tennessee, United States
Nashville 684,410 Consolidated city-county in Davidson County, Tennessee, United States, and the state capital of Tennessee
Memphis 649,705 County seat of Shelby County, Tennessee, United States
New South Memphis 641,608 City in United States of America
Knox County 475,609 County in Maine, United States
Hamilton County 371,662 County in Tennessee, United States
Rutherford County 339,261 County in North Carolina, United States
Williamson County 245,348 County in Tennessee, United States
Montgomery County 214,251 County in Tennessee, United States
Sumner County 195,561 County in Tennessee, United States
Knoxville 190,223 County seat of Knox County, Tennessee, United States; third-largest city in Tennessee
Chattanooga 184,742 City in and county seat of Hamilton County, Tennessee, United States
Clarksville 161,247 City in Tennessee
Sullivan County 158,755 County in New York, United States
East Chattanooga 154,024 City in Hamilton County, Tennessee, United States of America