PARISH · LA
Allen Parish, Louisiana
Allen Parish is a parish in Louisiana with FIPS code 22003 and an estimated population of 22,112 (Census 2023), 39th largest of 64 in the state.
County facts
- Name
- Allen Parish
- State
- Louisiana
- Type
- parish
- FIPS code
- 22003
- State FIPS
- 22
- Population (2023)
- 22,112
- Change since 2020
- -2.5%
- State rank
- 39 of 64
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Allen Parish?
Allen Parish, Louisiana has the five-digit FIPS code 22003: 22 for the state and 003 for the county.
What state is Allen Parish in?
Allen Parish is in Louisiana.
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.