Winnsboro is located in Fairfield County, SC. The population is 3,562, making Winnsboro the largest city in Fairfield County.
There are 6 public schools in Winnsboro with an average Homefacts rating of C-. The total crime rate for Winnsboro is moderate, and there are 32 registered sex offenders residing in the city. Unemployment in Winnsboro is moderate and the median home sales price is $0.