List of all settlements:
- Alder, Madison
- Alexandria, Madison
- Alhambra, Madison
- Alton, Madison
- Anderson, Madison
- Battle Creek, Madison
- Berea, Madison
- Bethalto, Madison
- Big Sky, Madison
- Bridgeport, Madison
- Brightwood, Madison
- Canastota, Madison
- Canton, Madison
- Carlton, Madison
- Cazenovia, Madison
- Cherokee Pass, Madison
- Chesterfield, Madison
- Chittenango, Madison
- Choctaw Lake, Madison
- Cobalt, Madison
- Colbert, Madison
- Comer, Madison
- Danielsville, Madison
- Delta, Madison
- DeRuyter, Madison
- Earlham, Madison
- Earlville, Madison
- East Alton, Madison
- East Peru, Madison
- Edgewood, Madison
- Edwardsville, Madison
- Elwood, Madison
- Ennis, Madison
- Flora, Madison
- Frankton, Madison
- Fredericktown, Madison
- Glen Carbon, Madison
- Godfrey, Madison
- Granite City, Madison
- Grantfork, Madison
- Greenville, Madison
- Gurley, Madison
- Hamel, Madison
- Hamilton, Madison
- Harrison, Madison
- Hartford, Madison
- Harvest, Madison
- Hazel Green, Madison
- Highland, Madison
- Holiday Shores, Madison
- Hot Springs, Madison
- Hull, Madison
- Huntsville, Madison
- Ila, Madison
- Ingalls, Madison
- Jackson, Madison
- Jackson, Madison
- Junction City, Madison
- Kearney Park, Madison
- Lafayette, Madison
- Lapel, Madison
- Lee, Madison
- Livingston, Madison
- London, Madison
- Macksburg, Madison
- Madison, Madison
- Madison, Madison
- Madison, Madison
- Madison, Madison
- Madison, Madison
- Madisonville, Madison
- Marine, Madison
- Markleville, Madison
- Marquand, Madison
- Mars Hill, Madison
- Marshall, Madison
- Maryville, Madison
- Meadow Grove, Madison
- Medon, Madison
- Meridianville, Madison
- Midway, Madison
- Midway, Madison
- Mine La Motte, Madison
- Mitchell, Madison
- Moores Mill, Madison
- Morrisville, Madison
- Mount Sterling, Madison
- Munnsville, Madison
- New Douglas, Madison
- New Hope, Madison
- New Market, Madison
- Norfolk, Madison
- Oneida, Madison
- Orestes, Madison
- Owens Cross Roads, Madison
- Patterson, Madison
- Pendleton, Madison
- Pierron, Madison
- Plain City, Madison
- Plumwood, Madison
- Pontoon Beach, Madison
- Pony, Madison
- Redstone Arsenal, Madison
- Rexburg, Madison
- Richmond, Madison
- Richmond, Madison
- Ridgeland, Madison
- Rosewood Heights, Madison
- Roxana, Madison
- Sheridan, Madison
- South Roxana, Madison
- South Solon, Madison
- St. Charles, Madison
- St. Jacob, Madison
- St. Paul, Madison
- Sugar City, Madison
- Summitville, Madison
- Tallulah, Madison
- Three Way, Madison
- Tilden, Madison
- Triana, Madison
- Troy, Madison
- Truro, Madison
- Twin Bridges, Madison
- Venice, Madison
- Virginia City, Madison
- Wampsville, Madison
- West Jefferson, Madison
- Williamson, Madison
- Winterset, Madison
- Wood River, Madison
- Worden, Madison