COUNTY · KS
Rooks County, Kansas
Rooks County is a county in Kansas with FIPS code 20163 and an estimated population of 4,778 (Census 2023), 68th largest of 105 in the state.
County facts
- Name
- Rooks County
- State
- Kansas
- Type
- county
- FIPS code
- 20163
- State FIPS
- 20
- Population (2023)
- 4,778
- Change since 2020
- -2.4%
- State rank
- 68 of 105
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Rooks County?
Rooks County, Kansas has the five-digit FIPS code 20163: 20 for the state and 163 for the county.
What state is Rooks County in?
Rooks County is in Kansas.
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.