COUNTY · NE
Clay County, Nebraska
Clay County is a county in Nebraska with FIPS code 31035 and an estimated population of 6,116 (Census 2023), 47th largest of 93 in the state.
County facts
- Name
- Clay County
- State
- Nebraska
- Type
- county
- FIPS code
- 31035
- State FIPS
- 31
- Population (2023)
- 6,116
- Change since 2020
- +0.3%
- State rank
- 47 of 93
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Clay County?
Clay County, Nebraska has the five-digit FIPS code 31035: 31 for the state and 035 for the county.
What state is Clay County in?
Clay County is in Nebraska.
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.