Charles County, Maryland

Charles County is located in the southern central portion of the U.S. state of Maryland. As of the 2020 census, the population was 166,617.^[1] The county seat is La Plata.^[2]

Charles County
County
Thomas Stone House
Flag Seal
Location within the U.S. state of Maryland
Maryland's location within the U.S.
Coordinates: 38°29′N 77°01′W
Country	United States
State	Maryland
Founded	April 13, 1658
Named for	Charles Calvert, 3rd Baron Baltimore
Seat	La Plata
Largest community	Waldorf
Area
• Total	643 sq mi (1,670 km2)
• Land	458 sq mi (1,190 km2)
• Water	185 sq mi (480 km2)  29%
Population  (2020)[1]
• Total	166,617
• Density	363.8/sq mi (140.5/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional district	5th
Website	www.charlescountymd.gov