Decatur is located in Dekalb County, GA. The population is 19,443, making Decatur the 5th largest city in Dekalb County.
There are 41 public schools in Decatur with an average Homefacts rating of C. The total crime rate for Decatur is very low , and there are 317 registered sex offenders residing in the city. Unemployment in Decatur is moderate and the median home sales price is $0. Detailed and up-to-date Decatur property reports are available for any property address.