COUNTY · TN
Decatur County, Tennessee
Decatur County is a county in Tennessee with FIPS code 47039 and an estimated population of 11,656 (Census 2023), 87th largest of 95 in the state.
County facts
- Name
- Decatur County
- State
- Tennessee
- Type
- county
- FIPS code
- 47039
- State FIPS
- 47
- Population (2023)
- 11,656
- Change since 2020
- +2.0%
- State rank
- 87 of 95
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Decatur County?
Decatur County, Tennessee has the five-digit FIPS code 47039: 47 for the state and 039 for the county.
What state is Decatur County in?
Decatur County is in Tennessee.
How do I know if an address is in this county?
Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.
Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.