Decatur County, Tennessee
County seat: Decaturville · Population 11,820 (2025) · 334 sq mi
Decatur County is the 87th most populous of Tennessee's 95 counties, with 11,820 people (2025 estimate). Its county seat is Decaturville. It is part of the West Tennessee region, one of the 3 Grand Divisions of Tennessee. The map shows its 3 cities and towns and the 6 neighboring counties.
Decatur County facts
- County seat
- Decaturville
- Population (2025 estimate)
- 11,820 +3.4% since 2020
- Land area
- 334 sq mi 66th largest of 95
- Water area
- 11 sq mi
- Population density
- 35 per sq mi
- Established
- 1845
- Same name
- One of 5 Decatur Counties in the US
- Named after
- Stephen Decatur United States Navy officer
- Largest city
- Parsons 2,162
- Median household income
- $45,375
- Cities and towns
- 3
- ZIP codes
- 9
- Time zone
- Central
- FIPS code
- 47039
Cities and towns in Decatur County
Decatur County has 3 incorporated cities, towns and villages. Populations count the people living inside Decatur County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Parsons | City | 2,162 | |
| Decaturville (county seat) | Town | 813 | |
| Scotts Hill | Town | 331 | Henderson County |
ZIP codes in Decatur County
9 ZIP codes reach into Decatur County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 38311
- 38328 also Henderson County
- 38329 also Henderson County
- 38341 also Benton and Carroll counties
- 38363 also Henderson County
- 38371 also Henderson and Hardin counties
- 38374 also Henderson County
- 38380 also Benton County
- 38388 also Henderson County
Population of Decatur County, 2020–2025
Decatur County grew by 386 people (+3.4%) between April 2020 and July 2025: 533 more deaths than births and a net gain of 907 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 11,429 |
| 2021 | 11,392 |
| 2022 | 11,527 |
| 2023 | 11,685 |
| 2024 | 11,738 |
| 2025 | 11,820 |
Neighboring counties
- Perry County east · 9,126 people
- Henderson County west · 28,518 people
- Hardin County south · 27,983 people
- Benton County north · 16,183 people
- Wayne County southeast · 16,416 people
- Carroll County northwest · 29,200 people
Printable Decatur County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (88 KB)
- PNG (2400 px) (92 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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