Every NPS unit in Hawaii.
Hawaii's 9 NPS units: 3 National Historical Parks · 2 National Parks · 2 National Historic Sites · 1 National Historic Trail · 1 National Memorial. Combined 5-year-average annual visits: 3,133,487 (multi-state units count their full visits in every state they touch — see methodology). The most-visited unit is Hawaiʻi Volcanoes National Park at about 1.56M annual visits.
| Unit | Designation | 5-yr avg visits | Busiest month |
|---|---|---|---|
| Hawaiʻi Volcanoes National Park | National ParkHAVO | 1,555,090 | December |
| Haleakalā National Park | National ParkHALE | 863,655 | July |
| Puʻuhonua o Hōnaunau National Historical Park | National Historical ParkPUHO | 346,017 | December |
| Kaloko-Honokōhau National Historical Park | National Historical ParkKAHO | 311,580 | March |
| Kalaupapa National Historical Park | National Historical ParkKALA | 31,423 | July |
| Puʻukoholā Heiau National Historic Site | National Historic SitePUHE | 25,722 | March |
| Ala Kahakai National Historic Trail | National Historic TrailALKA | — | — |
| Honouliuli National Historic Site | National Historic SiteHONO | — | — |
| Pearl Harbor National Memorial | National MemorialVALR | — | — |
Methodology
Unit list and per-unit visit counts come from the official NPS Visitor Use Statistics Data Package, 2025. The "5-year average visits" column is the mean of 2021-2025 Recreation Visits. Multi-state NPS units (Yellowstone, Death Valley, Great Smoky Mountains and others) are listed under every state they touch; the per-unit visit count is the unit's total, not a per-state share. Independent site, not affiliated with the National Park Service.
Independent site. Not affiliated with or endorsed by the National Park Service. Data comes from the official NPS Visitor Use Statistics Data Package, 2025; editorial analysis is ours. The NPS Arrowhead and other NPS marks are not used.