Rosaryville is an unincorporated area and census-designated place (CDP) in Prince George's County, Maryland, United States beside U.S. Route 301. The population was 10,697 at the 2010 census, including housing developments and rural open space. It was named for a local Roman Catholic church. Close to Rosaryville are the Marlton housing development, Maryland Veterans Cemetery, the Southern Maryland Farmers Market, and Rosaryville State Park.HistoryHis Lordship's Kindness was listed on the National Register of Historic Places and as a National Historic Landmark in 1970.GeographyRosaryville is located at .According to the United States Census Bureau, the CDP has a total area of 23.8km2, of which 0.04sqkm, or 0.18%, is water.DemographicsAs of the census of 2000, there were 12,322 people, 4,112 households, and 3,367 families residing in the CDP. The population density was 901.4 people per square mile (348.0/km²). There were 4,267 housing units at an average density of 312.2/sq mi (120.5/km²). The racial makeup of the CDP was 34.13% White, 59.57% African American, 0.64% Native American, 2.67% Asian, 0.11% Pacific Islander, 0.63% from other races, and 2.25% from two or more races. Hispanic or Latino of any race were 2.12% of the population.
