Fairfax County, officially the County of Fairfax, is a county in the Commonwealth of Virginia. With a population of 1,150,309 as of the 2020 census, it is the most populous county in Virginia, the most populous jurisdiction in the Washington metropolitan area, and the most populous location in the Washington–Baltimore combined statistical area. The county seat is Fairfax; however, because it is an independent city under Virginia law, the city of Fairfax is not part of the county.
Fairfax, Virginia, is an independent city in Virginia and the county seat of Fairfax County, Virginia, in the United States. As of the 2020 census, the population was 24,146.
Annandale is a census-designated place (CDP) in Fairfax County, Virginia. The population of the CDP was 43,363 as of the 2020 United States Census. It is home to the oldest and largest branch of the Northern Virginia Community College system, and to one of the D.C. area's Koreatowns.
Bailey's Crossroads is a census-designated place (CDP) in Fairfax County, Virginia, United States. The population was 24,749 at the 2020 census. Bailey's Crossroads lies at the crossroads of State Route 7 and State Route 244.
Burke is an unincorporated section of Fairfax County, Virginia, United States, traditionally defined as the area served by the Burke post office. Burke includes two census-designated places: the Burke CDP, population 42,312 in 2020 and the Burke Centre CDP, population 17,518 in 2020.
Franconia is a census-designated place (CDP) in Fairfax County, Virginia, United States. The population was 18,943 at the 2020 census.
McLean is an unincorporated community and census-designated place in Fairfax County, Virginia, United States. The population of the community was 50,773 at the 2020 census. It is located between the Potomac River and Vienna within the Washington metropolitan area.
Pimmit Hills is a census-designated place (CDP) in Fairfax County, Virginia, United States, a neighborhood within a densely populated urban area. The name derives from Pimmit Run, the stream that was named for John Pimmit.
Reston is a census-designated place in Fairfax County, Virginia, United States, and a principal city of both Northern Virginia and the Washington metropolitan area. As of the 2020 U.S. census, Reston's population was 63,226.
Rose Hill is a census-designated place (CDP) in Fairfax County, Virginia, United States. The population was 20,226 at the 2010 census. Built in the mid-1950s, Rose Hill is the largest of the subdivisions that make up the CDP, which is just southwest of Alexandria; others include Wilton Woods, Burgundy Village, and Winslow Heights. Street addresses are in Alexandria ZIP codes 22310, 22303 and 22315.
Tysons, also known as Tysons Corner, is a census-designated place (CDP) in Fairfax County, Virginia, United States, spanning from the corner of SR 123 and SR 7. It is part of the Washington metropolitan area and located in Northern Virginia between McLean and Vienna along the I-495.
Vienna is a town in Fairfax County, Virginia, United States. As of the 2020 U.S. census, Vienna has a population of 16,473. Significantly more people live in ZIP codes with the Vienna postal addresses, bordered approximately by Interstate 66 on the south, Interstate 495 on the east, Route 7 to the north, and Hunter Mill Road to the west, than in the town itself.
Ballston is a neighborhood in Arlington County, Virginia. Ballston is located at the western end of the Rosslyn-Ballston corridor. It is a major transportation hub and has one of the nation's highest concentrations of scientific research institutes and research and development agencies, including DARPA, the Office of Naval Research, the Advanced Research Institute of Virginia Tech, the Air Force Research Laboratory, and engineering, management, and public sector consulting firms. Ballston also includes a section known as Virginia Square and sometimes the area is collectively known as Ballston-Virginia Square.
Ox Hill Battlefield Park is a site in Fairfax, Virginia, where the Battle of Ox Hill was fought during the American Civil War. It was the only major battle of the war fought in Fairfax County. The battlefield is now a public park adjacent to suburban developments and the Fairfax Towne Center shopping center, and is maintained by the Fairfax County Park Authority.
State Route 123 or Virginia State Route 123 is a primary state highway in the U.S. state of Virginia. The state highway runs 29.27 miles (47.11 km) from U.S. Route 1 in Woodbridge north to the Chain Bridge across the Potomac River into Washington from Arlington. It goes by five local names. From its southern terminus to the Occoquan River Bridge, it is known as Gordon Boulevard. From the Occoquan River Bridge to the city of Fairfax it is known as Ox Road. From Fairfax until it enters the Town of Vienna, it is known as Chain Bridge Road. Then, as it passes through the Town of Vienna, it is known as Maple Avenue. After leaving the Town of Vienna, the name reverts to Chain Bridge Road, and continues this way until the intersection with I-495 in Tysons. Between Tysons and the George Washington Memorial Parkway, it is known as Dolley Madison Boulevard. After crossing over the George Washington Memorial Parkway, the name once again reverts to Chain Bridge Road and continues this way until the end of the road, at Chain Bridge. SR 123 is a partial circumferential highway in Northern Virginia that connects Woodbridge in eastern Prince William County with the independent city of Fairfax and the Fairfax County communities of Vienna, Tysons, and McLean, the last being the home of the National Counterterrorism Center and the Central Intelligence Agency. The state highway also connects all of the major highways that radiate from Washington, including Interstate 95 (I-95), I-66, US 29, US 50, SR 267, and the George Washington Memorial Parkway. Furthermore, SR 123 crosses another pair of circumferential highways, I-495 and the Fairfax County Parkway, and SR 7, a major northwest–southeast highway through Northern Virginia. The state highway is a part of the National Highway System for its entire length.
Hollin Hills is a historic district and neighborhood approximately 10 miles south of Alexandria, Virginia. Though mailing addresses in Hollin Hills are listed as being in Alexandria, it is actually in an unincorporated part of southeast Fairfax County, Virginia. It is located primarily in the Fort Hunt area of the county with some portions remaining in the Hybla Valley and Groveton areas since a shift for census purposes prior to 2010. The community contains more than 30 acres (12 ha) of parkland across seven distinct parks, a pool and swim club, a bocce court, and a pickleball and tennis club, operated and maintained by the Civic Association of Hollin Hills (CAHH).
Lewinsville is an unincorporated community in Fairfax County, Virginia, United States. Traditionally, the center of Lewinsville has been located at the crossroads of Lewinsville and Chain Bridge Roads. Together with Langley, Lewinsville forms the census-designated place of McLean.
Alexandria, Virginia is an independent city in the Commonwealth of Virginia, located along the western bank of the Potomac River. The city of approximately 151,000 is about six miles south of downtown Washington, D.C.
Gum Springs is a community in Fairfax County in Hybla Valley along Route 1. The African American community, the oldest in the county, was established in 1833 by West Ford, a freedman who had been manumitted by Hannah Bushrod Washington, in 1805. A historical marker was erected by the Virginia Department of Historic Resources in 1991.
