County research and study

Hawaii county reference

5 counties and county equivalents in Hawaii. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Hawaii County

  Hawaii · FIPS 15001

  210,043 residents · 2025 estimate

• Honolulu County

  Hawaii · FIPS 15003

  988,703 residents · 2025 estimate

• Kalawao County

  Hawaii · FIPS 15005

  82 residents · 2025 estimate

• Kauai County

  Hawaii · FIPS 15007

  73,400 residents · 2025 estimate

• Maui County

  Hawaii · FIPS 15009

  160,592 residents · 2025 estimate

Use the county data

Use a county profile as a source-reading exercise or the geographic context for your own research. Keep the county FIPS identifier with your notes so that similarly named places in different states are not mixed.

The figures describe the county; they are not an evaluation of schools or an estimate of educational outcomes.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.