St. Luke's is located at the intersection of Fort Hunt and Wellington Roads in Fairfax County, a northern Virginia suburb of Washington, D.C. The church is situated several blocks from the Potomac River approximately five miles south of the city of Alexandria and three miles north of Mount Vernon, the estate of George Washington. St. Luke's is easily accessible from the George Washington Parkway, Route 1, and the Capital Beltway.
You can find a map to St. Luke's at MapQuest.