Lake Terrapin is situated in the middle of Prince William County.  As such, residents of Lake Terrapin enjoy an easy commute to I-95 and Quantico. While swimming is prohibited in the lake itself, Lake Terrapin residents have a full array of amenities including a large clubhouse, pool, tennis court, several tot lots, and a basketball court.  Homes in Lake Terrapin vary from town homes to single-family homes and range in size from 1,550 sq. ft.  to 5,000 sq ft.

Other nearby communities include Winding Creek, Spriggs Run Estates, Hope Hill Crossing, Ashland, Montclair.