Rhode Island has two NPS units: Roger Williams National Memorial (Providence, on the site of Rhode Island's founding) and the Blackstone River Valley National Historical Park, a 50-mile corridor through the cradle of the American Industrial Revolution that the park shares with Massachusetts. Add to that the segments of the Washington-Rochambeau Revolutionary Route National Historic Trail that run through the state. T.F. Green International (PVD) in Warwick is the main anchor airport; Boston Logan (BOS, Massachusetts) is another option for the northern Blackstone units. Both NPS units operate year-round with seasonal interpretive programming and ranger-led walks concentrated in summer. Blackstone Valley includes restored cotton mills and worker-housing districts in Pawtucket, Slatersville, and the Whitin and Slater historic districts; the corridor's 50-mile geography makes it more of a multi-day driving tour than a single-site visit.
Every NPS unit in Rhode Island.
Rhode Island's 4 NPS units: 1 National Historical Park · 1 National Memorial · 1 National Historic Site · 1 National Historic Trail. Combined 5-year-average annual visits: 34,893 (multi-state units count their full visits in every state they touch, see methodology). The most-visited unit is Roger Williams National Memorial at about 35K annual visits.
Every National Park Service site in Rhode Island, mapped.
Each glowing marker is one site, placed at its real coordinates and colored by type. Select a marker for its yearly visits and a link, or use the filters to show or hide a group. 3 of 4 units are mapped here; long-distance trails and units centered in another state are in the table below.
Marker positions are each unit's official NPS coordinates. State outline: U.S. Census cartographic boundary (public domain). Independent site, not affiliated with the National Park Service.
Unit
Designation
5-yr avg visits
Busiest month
Roger Williams National Memorial
National MemorialROWI
34,893
July
Blackstone River Valley National Historical Park
National Historical ParkBLRV
—
—
Touro Synagogue National Historic Site
National Historic SiteTOSY
—
—
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.