Anne Arundel County, 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, an increase of just under 10% since 2010. Its county seat is Annapolis, which is also the capital of the state. The county is named for Lady Anne Arundell, 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.
Long Neck is a census-designated place (CDP) in Sussex County, Delaware, United States. The population was 1,980 at the 2010 census. Long Neck was the only census-designated place in Sussex County until Lincoln was added in the 2020 United States census. It is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area.
Hillsmere Shores was a census-designated place (CDP) in Anne Arundel County, Maryland, United States. It is a suburb of Annapolis. The population was 2,977 at the 2000 census. It was included in the Annapolis Neck CDP at the 2010 census. Built in phases, beginning in 1960, the community has been home to The Key School, a non-sectarian private school, since the 1960s.
Linthicum is a census-designated place (CDP) and unincorporated community in Anne Arundel County, Maryland, United States. The population was 10,324 at the 2010 census. It is located directly north of Baltimore–Washington International Thurgood Marshall Airport (BWI).
Mayo is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 8,298 at the 2010 census. The Mayo CDP of 2010 includes all of the area that used to be counted as the Selby-on-the-Bay CDP. The beach in Mayo used to be a popular weekend resort.
Parole, a suburb of Annapolis, is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 15,922 at the 2010 census. It is where several major roads intersect at the western edge of the state capital, Annapolis, and contains the Annapolis Mall, and a number of other large shopping centers, and the Anne Arundel Medical Center. It is generally considered to be part of Annapolis rather than a separate town. The neighborhood was named because it was a parole camp, where Union and Confederate prisoners of war were brought for mutual exchange and eventual return to their respective homes.
Severna Park is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. Severna Park is part of the Baltimore-Washington Metropolitan Area, and is located approximately 8 miles (13 km) north of Annapolis, 17 miles (27 km) south of Baltimore and 39 miles (63 km) east of Washington. Severna Park's population was 37,634 at the 2010 census.
Shady Side is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 5,803 at the 2010 census.
Mashpee Neck is a census-designated place (CDP) in the town of Mashpee in Barnstable County, Massachusetts, United States. The population was 1,000 at the 2010 census. It is the most populous of the seven CDPs in Mashpee.
A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing cities, towns, and villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, edge cities, colonias located along the Mexico–United States border, and unincorporated resort and retirement communities and their environs.
Seabrook is an unincorporated community and census-designated place (CDP) in Prince George's County, Maryland, United States, located approximately 12 miles (19 km) east of Washington. Per the 2020 census, the population was 19,627. Prior to 2010, Seabrook was part of the Lanham-Seabrook census-designated place.
Galesville is an unincorporated town and census-designated place (CDP) in Anne Arundel County, Maryland, United States. As of the 2010 census, it had a population of 685.
Bishopville is an unincorporated community and census-designated place 10 miles (16 km) north of Berlin in Worcester County, Maryland, United States. The community is just south of the Delaware state line. It is part of the Salisbury, Maryland-Delaware Metropolitan Statistical Area. As of the 2010 census, Bishopville had a population of 531.
Friendship is an unincorporated community and census-designated place (CDP) in Anne Arundel County, Maryland, United States. As of the 2010 census, its population was 447.
Annapolis is an unincorporated census-designated place (CDP) in Crawford County, Illinois, United States. Annapolis is 10 miles (16 km) north-northwest of Robinson. Annapolis has a post office with ZIP code 62413. Its population was 55 as of 2010.
Edgewater is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 9,023 at the 2010 census.
Porters Neck is an unincorporated community and census-designated place in New Hanover County, North Carolina, United States. Its population was 6,204 as of the 2010 census. William B. Gould was enslaved on Nicholas Nixon's plantation on Porters Neck before escaping in 1862.
United States
Maryland 
Anne Arundel 
