Every NPS unit in Oregon.
Oregon's 10 NPS units: 3 National Historic Trails · 2 National Historical Parks · 1 National Park · 1 National Historic Site · 1 National Geologic Trail · 1 National Monument · 1 National Monument & Preserve. Combined 5-year-average annual visits: 2,358,864 (multi-state units count their full visits in every state they touch — see methodology). The most-visited unit is Fort Vancouver National Historic Site at about 964K annual visits.
| Unit | Designation | 5-yr avg visits | Busiest month |
|---|---|---|---|
| Fort Vancouver National Historic Site | National Historic SiteFOVA | 964,072 | July |
| Crater Lake National Park | National ParkCRLA | 574,434 | July |
| Nez Perce National Historical Park | National Historical ParkNEPE | 343,582 | June |
| Lewis and Clark National Historical Park | National Historical ParkLEWI | 270,041 | July |
| John Day Fossil Beds National Monument | National MonumentJODA | 147,228 | June |
| Oregon Caves National Monument & Preserve | National Monument & PreserveORCA | 59,507 | July |
| California National Historic Trail | National Historic TrailCALI | — | — |
| Ice Age Floods National Geologic Trail | National Geologic TrailIAFL | — | — |
| Lewis & Clark National Historic Trail | National Historic TrailLECL | — | — |
| Oregon National Historic Trail | National Historic TrailOREG | — | — |
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.