The City of Black Jack was Incorporated on August 6, 1970. The population was 6, 929 at the 2010 census. The City is governed by a mayor and 8 council members. The present mayor is Norman C. McCourt. City Hall is located at 12500 Old Jamestown Road, 63033. For more information on the City of Black Jack, call 314-355-0400 or visit www.cityofblackjack.com.