Greenbriar, Virginia

Greenbriar is a census-designated place in Fairfax County, Virginia, United States. The population at the 2020 census was 8,421. The community between Fairfax City and Chantilly dates from the late 1960s, when it was developed by Levitt & Sons. The community is famous for having only one road within its territory that does not start with an "M" or "P", which is Acorn Hill (added in 1994 with the addition of five mansions to the community). A popular (but not proven) belief is that the roads were named after the architect's two children. One drawback for residents of the community is that with nearly identical sounding named roads (for example, Mayport and Maylock) in such close proximity to each other and house numbers being the same, the US Postal Service along with UPS and FedEx sometimes deliver items to the wrong house.

Geography
Greenbriar is located in western Fairfax County, bordered by Chantilly to the west, Fair Lakes to the south, and Fair Oaks to the east. U.S. Route 50 forms the northern border of the CDP. US 50 leads east 5 mi to the center of Fairfax, and 22 mi to downtown Washington, D.C. According to the U.S. Census Bureau, the Greenbriar CDP has a total area of 4.1 sqkm, of which 0.02 sqkm, or 0.54%, is water.

2020 census
This section includes some information from the 2022 American Community Survey

At the 2020 census there were 8,421 people, 3,229 housing units and 3,021 households residing in the CDP. The population density was 5,363.7 inhabitants per square mile (2,074.1/km2). The average housing unit density was 2,056.7 per square mile (795.3/km2). The racial makeup of the CDP was 54.55% White, 5.46% African American, 0.49% Native American, 25.27% Asian, 0.06% Pacific Islander, 4.75% from other races, and 9.42% from two or more races. Hispanic or Latino of any race was 11.45% of the population.

Of the households, 2.7% were non-family households, 56.9% were married couple families, 23.7% were a male family householder with no spouse, and 16.7% were a female family householder with no spouse. The average family household had 3.17 people.

The median age was 40.3, 23.4% of people were under the age of 18, and 15.2% were 65 years of age or older. The largest ancestry is the 11.8% who had German ancestry, 34.9% spoke a language other than English at home, and 26.5% were born outside the United States, 42.9% of whom were naturalized citizens.

The median income for a household in the CDP was $127,100, and the median income for a family was $159,412. 9.9% of the population were military veterans, and 62.6% had a batchelor's degree or higher. In the CDP 7.2% of the population was below the poverty line, including 8.9% of those under the age of 18 and 4.3% of those aged 65 or over, with 7.3% of the population without health insurance.

2010 census
The population at the 2010 census was 8,166.

Amenities
A private pool is located in the community, but pool memberships are not available for sale from the Pool Club. Instead, residents may choose to purchase their memberships from other members who are selling their memberships. Residents sometimes list those memberships for sale in the community newspaper Greenbriar Flyer. As a member, one makes an annual payment to cover the costs of the pool's maintenance and staff, as well as for hosting swim meets for residents of other communities around Fairfax County. The swim teams at Greenbriar are known as the Greenbriar Dolphins.

Unlike most communities which are bound to a homeowners' association, Greenbriar has only a civic association which collects a strictly voluntary $25 annual donation from each owner, which pays for events that the community hosts throughout the year, including Bands in the Park, where during the summer, local music groups will play for residents at Greenbriar Commons Park; as well as the annual community phone Directory.

The Civic Association, however, has no bylaws for residents, which makes it attractive and a high demand-market community to live in within western Fairfax County.