McLean sits in Fairfax County just west of Washington, D.C., stretching from the Potomac River to the Capital Beltway and bordered by Great Falls to the north and Tysons to the south. The area serves as home to the Central Intelligence Agency headquarters in Langley, along with numerous federal contractors, consulting firms, and technology companies that draw professionals working in the national capital region. Chain Bridge Road and Old Dominion Drive form the main commercial corridors through neighborhoods ranging from older subdivisions near downtown to larger estates closer to the river, while the Tysons edge has seen significant mixed-use development over the past decade.