COUNTY · MS
Warren County, Mississippi
Warren County is a county in Mississippi with FIPS code 28149 and an estimated population of 42,298 (Census 2023), 17th largest of 82 in the state.
County facts
- Name
- Warren County
- State
- Mississippi
- Type
- county
- FIPS code
- 28149
- State FIPS
- 28
- Population (2023)
- 42,298
- Change since 2020
- -5.0%
- State rank
- 17 of 82
Population is the Census Bureau’s Vintage 2023 estimate.
Other counties in Mississippi
Questions
What is the FIPS code for Warren County?
Warren County, Mississippi has the five-digit FIPS code 28149: 28 for the state and 149 for the county.
What state is Warren County in?
Warren County is in Mississippi.
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.