Shellman is a city in Randolph County, Georgia, United States. The population was 1,083 at the 2010 census. Buildings in the commercia…Shellman is a city in Randolph County, Georgia, United States. The population was 1,083 at the 2010 census. Buildings in the commercial center have been designated as an historic district and listed in 1985 on the National Register of Historic Places.