Prince George's County

Prince George's County (often shortened to PG County) is a county located in the U.S. state of Maryland, bordering the eastern portion of Washington, D.C. As of the 2010 U.S. Census, the population was 863,420, making it the second-most populous county in Maryland, behind Montgomery County. The 2020 census counted 967,201 residents, an increase of nearly 104,000 in the previous ten years. Its county seat is Upper Marlboro. It is the largest and the most affluent African American-majority county in the United States, with five of its communities identified in a 2015 top ten list.

Prince George's County is included in the Washington metropolitan area. The county also hosts many federal governmental facilities, such as Joint Base Andrews and the United States Census Bureau headquarters.