COUNTY · KS
Franklin County, Kansas
Franklin County is a county in Kansas with FIPS code 20059 and an estimated population of 26,125 (Census 2023), 23rd largest of 105 in the state.
County facts
- Name
- Franklin County
- State
- Kansas
- Type
- county
- FIPS code
- 20059
- State FIPS
- 20
- Population (2023)
- 26,125
- Change since 2020
- +0.5%
- State rank
- 23 of 105
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Franklin County?
Franklin County, Kansas has the five-digit FIPS code 20059: 20 for the state and 059 for the county.
What state is Franklin County in?
Franklin 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.