Every NPS unit in Connecticut.
Connecticut's 5 NPS units: 2 National Scenic Trails · 2 National Historical Parks · 1 National Historic Trail. Combined 5-year-average annual visits: 6,249,195 (multi-state units count their full visits in every state they touch — see methodology). The most-visited unit is Appalachian National Scenic Trail at about 6.22M annual visits.
| Unit | Designation | 5-yr avg visits | Busiest month |
|---|---|---|---|
| Appalachian National Scenic Trail | National Scenic TrailAPPA | 6,215,118 | July |
| Weir Farm National Historical Park | National Historical ParkWEFA | 34,077 | August |
| Coltsville National Historical Park | National Historical ParkCOLT | — | — |
| New England National Scenic Trail | National Scenic TrailNEEN | — | — |
| Washington-Rochambeau Revolutionary Route National Historic Trail | National Historic TrailWARO | — | — |
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.