Fairfax, Virginia, is a city located in the northern part of Fairfax County, approximately 20 miles west of Washington, D.C. It is part of the Washington metropolitan area and offers a blend of suburban living with easy access to the nation's capital. As of the 2020 Census, Fairfax has a population of around 25,000 residents, making it a relatively small but growing city. The city serves as a vibrant hub for both residents and businesses, with a range of amenities, historical sites, and excellent schools.

The median age in Fairfax is around 39 years, reflecting a diverse community that includes young professionals, families, and retirees. The city has a relatively high population density for its size, with about 3,700 people per square mile. This density contributes to a dynamic atmosphere with a mix of residential neighborhoods, shopping areas, and green spaces.

In terms of income, Fairfax is an affluent area. The average individual income in the city is estimated to be between $45,000 and $50,000 annually, which is somewhat lower than the surrounding county averages due to the number of service workers and younger residents. However, the median household income in Fairfax is notably higher, reflecting the presence of professionals who commute to D.C. for work.

The city's location, top-rated schools, and proximity to major employers make Fairfax an attractive place for families and professionals. The city's infrastructure is well-developed, with easy access to public transit, including Metro rail and bus systems, connecting Fairfax to Washington, D.C. and other parts of Northern Virginia.

Overall, Fairfax is a desirable and growing city that blends a suburban lifestyle with the convenience of urban amenities.