Barnwell is located in Barnwell County, SC. The population is 4,737, making Barnwell the largest city in Barnwell County.
There are 4 public schools in Barnwell with an average Homefacts rating of C-. The total crime rate for Barnwell is high , and there are 4 registered sex offenders residing in the city. Unemployment in Barnwell is very high and the median home sales price is $0. Detailed and up-to-date Barnwell property reports are available for any property address.