• county
  • FIPS 47039
  • Largest town: Parsons

Decatur County, Tennessee

Decatur County had 11,800 residents in the Census Vintage 2024 estimate, on 333.9 square miles of land. It ranks 87th of 95 in Tennessee by population and 66th by land area.

Population
11,800
#87 of 95 in Tennessee · #2,297 in US
Area
333.9 sq mi
#66 of 95 in Tennessee · #2,730 in US
Density
35 / sq mi
#87 of 95 in Tennessee · #1,791 in US
Median household income
$52,000
#74 of 95 in Tennessee · #2,559 in US

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

Decatur County within Tennessee. Pin: Nashville.

Measure from here

Tools and pages that start from Decatur County

Decatur County population, land area and income

Decatur County had 11,800 residents in the Census Vintage 2024 estimate, on 333.9 square miles of land. It ranks 87th of 95 in Tennessee by population and 66th by land area. That works out to 35.3 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Tennessee has 32,883 residents, so Decatur County has 36% of the typical county's population.

Its SAIPE 2023 median household income of $52,000 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

11,800

3144th1st

2297th of 3,144 (US)

Land area

334 sq mi

3144th1st

2730th of 3,144 (US)

Density

35.3 / sq mi

3144th1st

1791st of 3,144 (US)

Median household income

$52,000

3143rd1st

2559th of 3,143 (US)

Rank within Tennessee (95)

Population

11,800

95th1st

87th of 95 (TN)

Land area

334 sq mi

95th1st

66th of 95 (TN)

Density

35.3 / sq mi

95th1st

87th of 95 (TN)

Median household income

$52,000

95th1st

74th of 95 (TN)

How Decatur County's population changed since 2020

Decatur County gained 367 residents between the July 2020 and July 2024 estimates, a rise of 3.2%. That ranks 61st 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, Decatur County recorded 479 births and 884 deaths, a natural change of -405. Net international migration added +37 and net domestic migration, people moving to or from other US counties, came to +718. The largest single component was domestic migration, which added 718 people.

11.4k202011.4k202111.5k202211.7k202311.8k2024
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
479
Deaths
884
Net international migration
+37
Net domestic migration
+718
Change, July 2023 to July 2024
+91

Where Decatur County is

The Census internal point of Decatur County is at 35.603100, -88.110300. It sits in UTM zone 16N. The map shades Tennessee's 95 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Decatur 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: Decatur County internal point. Dark pin: Nashville.

Internal point

Decimal
35.603100, -88.110300
DMS
35°36'11.16"N 88°06'37.08"W
UTM
16N 399430.2E 3940495.2N
Geohash
dn36e1251
Plus code
867HJV3Q+6V

Towns in Decatur County

One incorporated place of 1,000+ people has residents in Decatur County, 2,159 people together, or 18% of the county. Each figure counts only the part of the town inside Decatur County; towns marked "part" extend into another county. The largest is Parsons with 2,159.

  1. 01Parsons2,159
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Decatur County

The Census 2024 county adjacency file lists 6 neighbors for Decatur County. The most populous is Carroll County, TN, with 29,107 residents. Distances run between Census internal points in a straight line.

Distance to Nashville and the nearest big city

Nashville is 83.8 miles ENE of Decatur County's internal point in a straight line. The nearest place of 100,000 or more is Clarksville, TN (population 185,690), 79.1 miles away. The nearest place of 10,000 or more is Jackson, TN (population 69,303), 40.9 miles away.

Decatur County FIPS code

The FIPS code of Decatur County is 47039: state code 47 for Tennessee plus county code 039. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $52,000.

Questions people ask

What is the population of Decatur County, Tennessee?

The Census Vintage 2024 estimate for July 1, 2024 is 11,800. That is up 367 people (3.2%) from the July 2020 estimate of 11,433.

What is the FIPS code of Decatur County?

47039. The first two digits (47) are Tennessee; the last three (039) identify the county.

What is the largest town in Decatur County?

Parsons, with 2,159 residents inside Decatur County in 2024.

Which counties border Decatur County?

6 county-equivalents border it in the Census 2024 adjacency file: Carroll County, TN; Henderson County, TN; Hardin County, TN; Benton County, TN; Wayne County, TN; Perry County, TN.

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.