Map of Dahlgren CDP, Virginia

Dahlgren is an unincorporated community and census-designated place (CDP) in King George County, Virginia, United States. The population was 2,946 at the time of the 2020 census, up from 2,653 at the 2010 census, and up from 997 in 2000.

Dahlgren CDP overview:
Name:	Dahlgren CDP
LSAD Code:	57
LSAD Description:	CDP (suffix)
State:	Virginia
County:	King George County
Elevation:	20 ft (6 m)
Total Area:	2.80 sq mi (7.24 km²)
Land Area:	2.69 sq mi (6.98 km²)
Water Area:	0.10 sq mi (0.25 km²)
Total Population:	2,653
Population Density:	984/sq mi (380.0/km²)
ZIP code:	22448, 22485
Area code:	540
FIPS code:	5121008
GNISfeature ID:	1465571

Online Interactive Map

Dahlgren online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

Dahlgren location map. Where is Dahlgren CDP?

Dahlgren location on the U.S. Map. Where is Dahlgren CDP. — Dahlgren location on the U.S. Map.

Dahlgren location on the Virginia map. Where is Dahlgren CDP. — Location of Dahlgren in Virginia.

History

Since 1918, Dahlgren has been the site of a U.S. naval base named for Rear Admiral John A. Dahlgren. It was first the “U.S. Naval Proving Ground” but was renamed the “U.S. Naval Weapons Laboratory” after 1950, the “Naval Surface Weapons Center” in 1974, the “Naval Surface Warfare Center” in 1987, and the “U.S. Naval Surface Warfare Center Dahlgren Division (NSWCDD)” around 1990. In 2006, it was renamed “Naval Support Activity-South Potomac (NSA-SP)”, with NSWCDD becoming a tenant command of the base. The U.S. Naval Space Surveillance Systems command was located at that base, but that responsibility was transferred to the Air Force in 2004. The AEGIS Training and Readiness Center is currently a tenant command at NSA-SP. The naval base lies just east of the Dahlgren CDP within its own census-designated place, Dahlgren Center.

Dahlgren Road Map

Dahlgren city Satellite Map

Geography

Dahlgren is in northeastern King George County, 1 mile (1.6 km) south of and 2 miles (3 km) west of the Potomac River. It is bordered to the east by the Naval Surface Warfare Center Dahlgren Division. The Dahlgren CDP extends north to state route 635, to the west to the unincorporated community of Owens, and south to the tidal Upper Machodoc Creek, an arm of the Potomac.

U.S. Route 301 (the James Madison Parkway), runs through Dahlgren, leading northeast across the Potomac 18 miles (29 km) to La Plata, Maryland, and southwest 15 miles (24 km) to Port Royal, Virginia.

According to the United States Census Bureau, the Dahlgren CDP has a total area of 2.8 square miles (7.2 km), of which 2.7 square miles (7.0 km) are land and 0.10 square miles (0.25 km), or 3.51%, are water.