Carroll County is a United States county located in the southwestern part of the Commonwealth of Virginia. Roughly one fifth of the county lies in the Virginia Piedmont region, while the rest is part of the Appalachian Mountains. The county seat and largest town is Hillsville.

Cities: Hillsville, Fancy Gap, Woodlawn, Cana
Population: 29,147 (2022)
County seat: Hillsville
Area: 478 mi²
Congressional district: 9th
Named for: Charles Carroll