Adelphi is an unincorporated area and census-designated place in Prince George's County, Maryland, United States. Per the 2020 Census, the population was 16,823. Adelphi includes the following subdivi
The Adelphi Mill in July 2007
The Chillum-Adelphi Volunteer Fire Department on Riggs Road
The Wilson H. Elkins Building, headquarters of the University System of Maryland in College Park, Maryland
Northwest Branch Anacostia River is a 21.5-mile-long free-flowing stream in Montgomery County and Prince George's County, Maryland. It is a tributary of the Anacostia River, which flows to the Potomac
The Northwest Branch underneath the Green and Yellow Lines of the Washington Metro near the West Hyattsville station