The Adelphi Mill, built in 1796 and now the oldest surviving mill in Prince George's County, stands as a testament to Adelphi's rich history. This established community remained largely undeveloped until after World War II, when it grew into the residential area we see today, offering townhomes, single-family homes, and apartment communities nestled among mature trees and green spaces.

Located just minutes from Washington D.C., Adelphi provides renters with suburban tranquility while maintaining easy access to the metropolitan area. The community is home to the University of Maryland Global Campus and sits adjacent to the University of Maryland's main campus in College Park. Established neighborhoods like Cool Spring Terrace, Knollwood, and Adelphi Hills feature tree-lined streets and proximity to Northwest Branch Trail and Lane Manor Recreational Park. The Adelphi Pool, a cornerstone of community life, welcomes residents during summer months with its recreational programs.

Commuters appreciate Adelphi's strategic location near major employment centers. The area hosts several federal facilities, including the Army Research Laboratory's Adelphi Laboratory Center, and provides easy access to the National Archives at College Park and the Food and Drug Administration headquarters. With average rents around $1,536 for a one-bedroom apartment, Adelphi presents a more affordable alternative to downtown Washington while maintaining convenient access to the capital via nearby transportation routes.