Maryland
Rosaryville State Park
Verified by America’s State Parks Editorial Team – Updated March 2026
Rosaryville State Park is a public state park in Maryland near Upper Marlboro in Prince George’s County. Spanning 1,227 acres and established in 1976, this park offers a peaceful retreat into nature for visitors of all ages.
Quick Facts
| State | Maryland |
| Nearest City | Upper Marlboro |
| County | Prince George’s |
| Park Size | 1,227 acres |
| Established | 1976 |
| Google Rating | ⭐ 4.5/5 (400 reviews) |
Location & Getting There
Rosaryville State Park is located near Upper Marlboro, Maryland. The park’s coordinates are 38.7741, -76.8111.
Explore More Maryland State Parks
Rosaryville State Park is one of many outstanding state parks in Maryland. Discover more parks in our Best State Parks in Maryland guide, or use our Park Finder to search by activity, location, or features.
Last updated: March 6, 2026





