|• Total||1.1 sq mi (2.9 km2)|
|• Land||1.1 sq mi (2.9 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||20 ft (6 m)|
|• Density||2,400/sq mi (920/km2)|
|Time zone||UTC−5 (Eastern (EST))|
|• Summer (DST)||UTC−4 (EDT)|
|GNIS feature ID||1465571|
Dahlgren is a census-designated place (CDP) in King George County, Virginia, United States. The population was 2,655 at the 2010 census, a large increase from the 997 reported in 2000. The community is located within the Northern Neck George Washington Birthplace American Viticultural Area winemaking appellation established by the United States government.
Since 1918, Dahlgren has been the site of a U.S. Naval base named for Rear Admiral John A. Dahlgren. It was then the "U.S. Naval Proving Ground" but was renamed, after 1950, "U.S. Naval Weapons Laboratory", in 1974, the "Naval Surface Weapons Center","in 1987 the "Naval Surface Warfare Center", and around 1990, as the "U.S. Naval Surface Warfare Center Dahlgren Division (NSWCDD)". 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.
According to the United States Census Bureau, the CDP has a total area of 1.1 square miles (2.9 km²), all of it land.
As of the census of 2000, there were 997 people, 456 households, and 260 families residing in the CDP. The population density was 885.2 people per square mile (340.7/km²). There were 510 housing units at an average density of 452.8/sq mi (174.3/km²). The racial makeup of the CDP was 70.31% White, 25.28% African American, 0.30% Native American, 1.50% Asian, 0.10% Pacific Islander, 0.60% from other races, and 1.91% from two or more races. Hispanic or Latino of any race were 1.71% of the population. As of the 2010 census the population had more than doubled, although the makeup was largely the same, with whites edging down as a percentage from 70.31% to 61.4%, blacks up from 25.28% to 30.5%, %, Hispanics up from 1.71% to 4.1%, and those reporting mixed race up from 1.91% to 3.8%.
There were 456 households out of which 24.8% had children under the age of 18 living with them, 41.2% were married couples living together, 11.0% had a female householder with no husband present, and 42.8% were non-families. 36.8% of all households were made up of individuals and 11.4% had someone living alone who was 65 years of age or older. The average household size was 2.19 and the average family size was 2.85.
In the CDP, the population was spread out with 23.7% under the age of 18, 7.9% from 18 to 24, 30.6% from 25 to 44, 20.9% from 45 to 64, and 17.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 96.6 males. For every 100 females age 18 and over, there were 95.6 males.
The median income for a household in the CDP was $49,545, and the median income for a family was $53,500. Males had a median income of $45,714 versus $21,029 for females. The per capita income for the CDP was $25,928. About 7.6% of families and 8.5% of the population were below the poverty line, including 12.7% of those under age 18 and 10.5% of those age 65 or over.
The 1.7 miles (2.7 km) long, narrow two-lane Governor Harry W. Nice Memorial Bridge funnels interstate traffic across the wide Potomac River at Dahlgren, offering an alternative to using Interstate 95. A wider replacement bridge is scheduled for completion in 2023. Dahlgren has a Super Walmart and a growing number of other small businesses.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- Virginia Trend Report 2: State and Complete Places (Sub-state 2010 Census Data). Missouri Census Data Center. Retrieved 2013-05-19.
- Wagner, Gary R. "Navy Transfers Space Surveillance Mission to Air Force". U.S. Navy.