COUNTY · ID
Boise County, Idaho
Boise County is a county in Idaho with FIPS code 16015 and an estimated population of 8,517 (Census 2023), 32nd largest of 44 in the state.
County facts
- Name
- Boise County
- State
- Idaho
- Type
- county
- FIPS code
- 16015
- State FIPS
- 16
- Population (2023)
- 8,517
- Change since 2020
- +11.1%
- State rank
- 32 of 44
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Boise County?
Boise County, Idaho has the five-digit FIPS code 16015: 16 for the state and 015 for the county.
What state is Boise County in?
Boise County is in Idaho.
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.