House District 38 includes most of Fairfax County inside the Beltway south of Arlington Blvd (Rt 50) and Leesburg Pike, including Falls Church and a large part of Annandale. The precincnts included are:

Mason District: Baileys, Barcroft, Belvedere, Brook Hill, Columbia, Homes 1&2, Hummer, Lincolnia, Masonville, Parklawn, Poe, Ravenwood, Sleepy Hollow, St. Albans, Westlawn and Weyanoke.

Braddock District: Bristow.