Madison County - Official site. Pages on Sheriff's and Joint Planning departments.
Madison County - NEGenWeb - Provides a genealogy and history database, photographs, maps and lookup assistance.
Madison County Genealogical Society - Contains information about meetings and membership, cemetery locations and a list of publications for sale. Located in Norfolk.
Madison County Historical Society - Dedicated to collect, preserve, and display memorabilia relating to the history of the county. Includes details about its museum exhibits and photographs, and activities.
