COUNTY · OK
Comanche County, Oklahoma
Comanche County is a county in Oklahoma with FIPS code 40031 and an estimated population of 121,574 (Census 2023), 5th largest of 77 in the state.
County facts
- Name
- Comanche County
- State
- Oklahoma
- Type
- county
- FIPS code
- 40031
- State FIPS
- 40
- Population (2023)
- 121,574
- Change since 2020
- +0.4%
- State rank
- 5 of 77
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Comanche County?
Comanche County, Oklahoma has the five-digit FIPS code 40031: 40 for the state and 031 for the county.
What state is Comanche County in?
Comanche County is in Oklahoma.
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.