COUNTY · GA
Union County, Georgia
Union County is a county in Georgia with FIPS code 13291 and an estimated population of 27,124 (Census 2023), 72nd largest of 159 in the state.
County facts
- Name
- Union County
- State
- Georgia
- Type
- county
- FIPS code
- 13291
- State FIPS
- 13
- Population (2023)
- 27,124
- Change since 2020
- +9.4%
- State rank
- 72 of 159
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Union County?
Union County, Georgia has the five-digit FIPS code 13291: 13 for the state and 291 for the county.
What state is Union County in?
Union County is in Georgia.
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.