Fairlawn is a census-designated place in Pulaski County, Virginia, United States. The population was 2,419 at the 2020 census up from 2,367 at the 2010 census. It is served by the Radford, Virginia post office and is located on the opposite side of the New River from Radford. Fairlawn is part of the Blacksburg–Christiansburg Metropolitan Statistical Area. Fairlawn is home to NASCAR sanctioned track Pulaski County Motorsports Park, formerly known as Motor Mile Speedway.