COUNTY · HI
Kauai County, Hawaii
Kauai County is a county in Hawaii with FIPS code 15007 and an estimated population of 73,851 (Census 2023), 4th largest of 5 in the state.
County facts
- Name
- Kauai County
- State
- Hawaii
- Type
- county
- FIPS code
- 15007
- State FIPS
- 15
- Population (2023)
- 73,851
- Change since 2020
- +0.9%
- State rank
- 4 of 5
Population is the Census Bureau’s Vintage 2023 estimate.
Other counties in Hawaii
Questions
What is the FIPS code for Kauai County?
Kauai County, Hawaii has the five-digit FIPS code 15007: 15 for the state and 007 for the county.
What state is Kauai County in?
Kauai County is in Hawaii.
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.