Allendale is a town in and the county seat of Allendale County, South Carolina. It has a total area of 3.3 square miles, all of which is land.
Sales and services, retail trade and real estate and rental and leasing are the major commercial activities here. Allendale Elementary School is the local public school. For higher education, there is the University of South Carolina-Salkehatchie. Allendale County Airport is the local airport. The closest hospital is the Barnwell County Hospital, located about 17 miles away in Barnwell. The cost of living here is 17.90% lower than the country average.
This place gets about 47 inches of rain annually. The number of days with measurable precipitation is 101.