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. McLean is home to many wealthy residents such as diplomats, military, members of Congress, and high-ranking government officials partially due to its proximity to Washington, D.C., the Pentagon and the Central Intelligence Agency.