Alphabetical list of Hawaii counties
The land-area figures are rounded to the nearest square mile. Water area is shown separately so large lakes or coastal waters do not obscure the comparison.
| Name | FIPS code | Land area | Water area |
|---|---|---|---|
| Hawaii County | 15001 | 4,028 sq mi | 1,058 sq mi |
| Honolulu County | 15003 | 601 sq mi | 1,565 sq mi |
| Kalawao County | 15005 | 12 sq mi | 41 sq mi |
| Kauai County | 15007 | 620 sq mi | 646 sq mi |
| Maui County | 15009 | 1,162 sq mi | 1,237 sq mi |
Largest Hawaii counties by land area
These are the five largest mapped units in Hawaii by Census-reported land area:
- Hawaii County — 4,028 square miles
- Maui County — 1,162 square miles
- Kauai County — 620 square miles
- Honolulu County — 601 square miles
- Kalawao County — 12 square miles
How to read and use this map
County lines are administrative boundaries, not postal routes. A mailing address can use a city name associated with a neighboring area, and ZIP codes can cross county lines. When you need to identify a county for an address, confirm it with an official geocoder or local government source.
For classroom or planning use, print directly from this page. If labels become crowded, choose landscape orientation and reduce page margins. The underlying vector lines remain crisp at different sizes.
Frequently asked questions
How many counties are in Hawaii?
Hawaii has 5 counties in the U.S. Census Bureau’s 2025 cartographic boundary file.
Can I print this Hawaii county map?
Yes. Choose Print map and use landscape orientation for the widest map. Because the map is SVG, its boundary lines stay sharp when scaled.
Are these legal survey boundaries?
No. This is a generalized reference map. Property, parcel, election, and legal boundary questions should be checked with the relevant state or local agency.
Map source
U.S. Census Bureau, 2025 Cartographic Boundary File, Counties, 1:20,000,000. Land and water area fields are supplied in the same file and converted from square meters to square miles. Accessed September 15, 2026.