- Hawaii County (also known as the Big Island)
- Maui County (includes the islands of Maui, Lanai, Molokai, and Kahoolawe)
- Honolulu County (encompasses the entire island of Oahu)
- Kauai County (includes the islands of Kauai and Niihau)
- Kalawao County (located on the island of Molokai, specifically on the Kalaupapa Peninsula)
Each county in Hawaii includes one or more of the state’s main islands, and each serves its own unique geographic and cultural role.