Anne Arundel County, Maryland

Anne Arundel County
County
Anne Arundel County Courthouse in Annapolis
Flag Seal
Location within the U.S. state of Maryland
Maryland's location within the U.S.
Coordinates: 39°00′N 76°36′W / 39°N 76.6°W / 39; -76.6
Country	United States
State	Maryland
Founded	April 9, 1650
Named for	Anne Arundell
Seat	Annapolis
Largest community	Glen Burnie
Government
• County Executive	Steuart Pittman
Area
• Total	588 sq mi (1,520 km2)
• Land	415 sq mi (1,070 km2)
• Water	173 sq mi (450 km2)  29%
Population  (2020)
• Total	588,261
• Density	1,000/sq mi (390/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional districts	3rd, 5th
Website	www.aacounty.org

County boundary

Anne Arundel County (listen^ⓘ; /əˈrʌndəl/), also notated as AA or A.A. County, is located in the U.S. state of Maryland. As of the 2020 United States census, its population was 588,261,^[1] an increase of just under 10% since 2010. Its county seat is Annapolis,^[2] which is also the capital of the state. The county is named for Anne Arundell (c. 1615/1616–1649), Lady Baltimore, a member of the ancient family of Arundells in Cornwall, England, and the wife of Cecilius Calvert, 2nd Baron Baltimore (1605–1675), founder and first lord proprietor of the colony Province of Maryland.

Anne Arundel County is included in the Baltimore–Columbia–Towson metropolitan statistical area, which is also included in the Washington–Baltimore–Arlington combined statistical area.