Demopolis is located in Marengo County, AL. The population is 7,439, making Demopolis the largest city in Marengo County.
There are 4 public schools in Demopolis with an average Homefacts rating of B-. The total crime rate for Demopolis is high, and there are 22 registered sex offenders residing in the city. Unemployment in Demopolis is very high and the median home sales price is $0.