COUNTY · IN
Randolph County, Indiana
Randolph County is a county in Indiana with FIPS code 18135 and an estimated population of 24,216 (Census 2023), 64th largest of 92 in the state.
County facts
- Name
- Randolph County
- State
- Indiana
- Type
- county
- FIPS code
- 18135
- State FIPS
- 18
- Population (2023)
- 24,216
- Change since 2020
- -0.8%
- State rank
- 64 of 92
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Randolph County?
Randolph County, Indiana has the five-digit FIPS code 18135: 18 for the state and 135 for the county.
What state is Randolph County in?
Randolph County is in Indiana.
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.