Rockbridge County Sheriff's Office is the primary law enforcement agency for Rockbridge County working closely with the state police, two city police departments, one college police department, a college security force, and a town sergeant. The Sheriff's Office employs a total staff of 42 personnel serving in areas of patrol, investigations, civil process, and communications. The Rockbridge County Sheriff's Office serves 607 square miles and a population of 23,000 not including the populations of Lexington and Buena Vista. The combined population reaches 39,000.
Rockbridge County is served by Interstates 81, 64 and U.S. Routes 11, 501, and 130. It is bordered by Bath and Alleghany Counties to the west, Augusta and Nelson Counties to the north, and Amherst County to the east. To its south, it is bordered by Botetourt County.