• county
  • FIPS 47171
  • Largest town: Erwin

Unicoi County, Tennessee

Unicoi County had 17,872 residents in the Census Vintage 2024 estimate, on 186.1 square miles of land. It ranks 73rd of 95 in Tennessee by population and 90th by land area.

Population
17,872
#73 of 95 in Tennessee · #1,941 in US
Area
186.1 sq mi
#90 of 95 in Tennessee · #3,021 in US
Density
96 / sq mi
#38 of 95 in Tennessee · #941 in US
Median household income
$54,955
#65 of 95 in Tennessee · #2,326 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Unicoi County within Tennessee. Pin: Nashville.

Measure from here

Tools and pages that start from Unicoi County

Unicoi County population, land area and income

Unicoi County had 17,872 residents in the Census Vintage 2024 estimate, on 186.1 square miles of land. It ranks 73rd of 95 in Tennessee by population and 90th by land area. That works out to 96.1 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Tennessee has 32,883 residents; Unicoi County is somewhat smaller.

Its SAIPE 2023 median household income of $54,955 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

17,872

3144th1st

1941st of 3,144 (US)

Land area

186 sq mi

3144th1st

3021st of 3,144 (US)

Density

96.1 / sq mi

3144th1st

941st of 3,144 (US)

Median household income

$54,955

3143rd1st

2326th of 3,143 (US)

Rank within Tennessee (95)

Population

17,872

95th1st

73rd of 95 (TN)

Land area

186 sq mi

95th1st

90th of 95 (TN)

Density

96.1 / sq mi

95th1st

38th of 95 (TN)

Median household income

$54,955

95th1st

65th of 95 (TN)

How Unicoi County's population changed since 2020

Unicoi County lost 1 residents between the July 2020 and July 2024 estimates, a drop of 0.0%. That ranks 87th of 95 in Tennessee for growth. The median Tennessee county changed by +4.4%, and the state as a whole by +4.3%.

Since the April 2020 estimates base, Unicoi County recorded 608 births and 1,473 deaths, a natural change of -865. Net international migration added +26 and net domestic migration, people moving to or from other US counties, came to +769. The largest single component was natural change, which removed 865 people.

17.9k202017.6k202117.6k202217.8k202317.9k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
608
Deaths
1,473
Net international migration
+26
Net domestic migration
+769
Change, July 2023 to July 2024
+60

Where Unicoi County is

The Census internal point of Unicoi County is at 36.100100, -82.418200. It sits in UTM zone 17N. The map shades Tennessee's 95 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Unicoi County outlined. Dots are towns of 1,000+ people with residents in it.

Warren County: +6.2%Bledsoe County: +4.3%Cheatham County: +3.7%Crockett County: +0.5%Putnam County: +6.0%Houston County: +2.8%Macon County: +7.6%Sequatchie County: +11.2%Fayette County: +6.2%Trousdale County: +4.5%Union County: +6.1%Claiborne County: +3.1%Weakley County: +0.8%Coffee County: +5.4%Johnson County: +2.8%Overton County: +4.3%Lake County: -8.1%Moore County: +4.7%Hardeman County: -0.0%Jefferson County: +7.8%Smith County: +4.1%Robertson County: +7.5%Gibson County: +1.9%Henry County: +2.3%Grundy County: +4.4%Decatur County: +3.2%Greene County: +4.3%Hamblen County: +4.9%Humphreys County: +2.9%Knox County: +5.5%Roane County: +5.7%Lewis County: +6.4%Rhea County: +4.4%Rutherford County: +9.8%Montgomery County: +11.2%Lauderdale County: -2.0%Shelby County: -2.1%Tipton County: +1.9%Perry County: +7.2%Stewart County: +4.8%Chester County: +2.8%Washington County: +4.8%Polk County: +4.4%Van Buren County: +8.3%Dyer County: -0.8%Davidson County: +1.9%Cocke County: +4.3%Williamson County: +7.8%Benton County: +2.0%Dickson County: +5.9%Lawrence County: +5.2%Hamilton County: +5.0%McNairy County: +0.9%Meigs County: +8.8%Hawkins County: +4.7%Blount County: +4.8%White County: +6.1%Marshall County: +9.8%Sullivan County: +2.8%Campbell County: +2.4%Haywood County: -4.1%Bradley County: +4.5%Franklin County: +5.4%Sumner County: +7.2%Hardin County: +2.4%Grainger County: +6.4%Hickman County: +3.6%Pickett County: +2.2%Carroll County: +2.4%Henderson County: +1.3%Sevier County: +1.3%Hancock County: +6.2%Scott County: +2.9%McMinn County: +6.4%Morgan County: +4.3%Lincoln County: +4.0%Obion County: -1.7%Unicoi County: -0.0%Wayne County: -1.5%Cannon County: +4.0%Fentress County: +8.6%Loudon County: +12.7%Wilson County: +14.3%Bedford County: +7.6%Monroe County: +5.9%DeKalb County: +7.7%Marion County: +3.2%Carter County: +1.9%Clay County: +3.5%Madison County: +1.6%Cumberland County: +6.9%Anderson County: +5.3%Maury County: +11.4%Giles County: +2.1%Jackson County: +6.4%
Change 2020 to 2024
  1. < +1.9%
  2. < +3.7%
  3. < +4.9%
  4. < +6.4%
  5. ≥ +6.4%
no data

Orange pin: Unicoi County internal point. Dark pin: Nashville.

Internal point

Decimal
36.100100, -82.418200
DMS
36°06'0.36"N 82°25'5.52"W
UTM
17N 372338.7E 3995982.1N
Geohash
dnmmkebfk
Plus code
868V4H2J+2P

Towns in Unicoi County

2 incorporated places of 1,000+ people have residents in Unicoi County, 9,865 people together, or 55% of the county. Each figure counts only the part of the town inside Unicoi County; towns marked "part" extend into another county. The largest is Erwin with 6,020.

  1. 01Erwin6,020
  2. 02Unicoi3,845
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Unicoi County

The Census 2024 county adjacency file lists 6 neighbors for Unicoi County, including 3 across a state line. The most populous is Washington County, TN, with 139,642 residents. Distances run between Census internal points in a straight line.

Distance to Nashville and the nearest big city

Nashville is 243.6 miles W of Unicoi County's internal point in a straight line. The nearest place of 100,000 or more is Knoxville, TN (population 198,722), 86.0 miles away. The nearest place of 10,000 or more is Johnson City, TN (population 73,635), 16.8 miles away.

Unicoi County FIPS code

The FIPS code of Unicoi County is 47171: state code 47 for Tennessee plus county code 171. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $54,955.

Questions people ask

What is the population of Unicoi County, Tennessee?

The Census Vintage 2024 estimate for July 1, 2024 is 17,872. That is down 1 people (0.0%) from the July 2020 estimate of 17,873.

What is the FIPS code of Unicoi County?

47171. The first two digits (47) are Tennessee; the last three (171) identify the county.

What is the largest town in Unicoi County?

Erwin, with 6,020 residents inside Unicoi County in 2024.

Which counties border Unicoi County?

6 county-equivalents border it in the Census 2024 adjacency file: Washington County, TN; Greene County, TN; Carter County, TN; Madison County, NC; Yancey County, NC; Mitchell County, NC.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.