COUNTY · TN
Hamilton County, Tennessee
Hamilton County is a county in Tennessee with FIPS code 47065 and an estimated population of 379,864 (Census 2023), 4th largest of 95 in the state.
County facts
- Name
- Hamilton County
- State
- Tennessee
- Type
- county
- FIPS code
- 47065
- State FIPS
- 47
- Population (2023)
- 379,864
- Change since 2020
- +3.4%
- State rank
- 4 of 95
Population is the Census Bureau’s Vintage 2023 estimate.
Major cities in Hamilton County
Other counties in Tennessee
Questions
What is the FIPS code for Hamilton County?
Hamilton County, Tennessee has the five-digit FIPS code 47065: 47 for the state and 065 for the county.
What state is Hamilton County in?
Hamilton 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.