Some of the cities, towns, and places in Madison County are Alhambra, Alton, Bethalto, Binney, Camp Dubois, Chouteau, Chouteau Island, Collinsville, Cottage Hills, Donkville, Dorsey, East Alton, Edwardsville, Fairmont City, Fort Russell, Foster, Fosterburg, Gabaret Island, Gard, Glen Carbon, Godfrey, Goshen Settlement, Granite City, Grantfork, Hamel, Hartford, Helvetia, Highland, Holiday Shores, Jarvis, Kaufman, Kuhn Station, LeClaire, Leef, Lincoln Place, Livingston, Lumaghi Heights, Madison, Marine, Maryville, Meadowbrook, Midway, Mitchell, Moro, Mosenthein Island, Nameoki, New Douglas, Newport, Olive, Omphghent, Pierron, Pin Oak, Poag, Pontoon Beach, Prairietown, Rosewood Heights, Roxana, Saline, South Roxana, St. Clair County, St. Jacob, St. Morgan, State Park Place, Troy, Upper Alton, Venice, Wanda, Williamson, Wood River, Worden
Madison County is a county in the U.S. state of Illinois. It is a part of the Metro East in southern Illinois. According to the 2020 census, it had a population of 264,776, making it the eighth-most populous county in Illinois and the most populous in the southern portion of the state. The county seat is Edwardsville, and the largest city is Granite City.Madison County is part of the Metro-East region of the St. Louis, MO-IL Metropolitan Statistical Area. The pre-Columbian city of Cahokia Mounds, a World Heritage Site, was located near Collinsville. Edwardsville is home to Southern Illinois University Edwardsville. To the north, Alton is known for its abolitionist and American Civil War-era history. It is also the home of the Southern Illinois University School of Dental Medicine. Godfrey, the village named for Captain Benjamin Godfrey, offers Lewis and Clark Community College formerly the Monticello Female Seminary.