Cana is a census-designated place (CDP) in Carroll County, Virginia, United States. The population was 1,228 at the 2000 census. It is the only CDP designated area in the county that is outside of the Appalachian Mountains in the Virginia Piedmont. In addition, the weather in Cana is similar of Mount Airy, North Carolina than it is in Hillsville or Galax. According to the United States Census Bureau, the CDP has a total area of 7.9 square miles (20.5 Square Kilometer), all of it land.