Decatur areas
- Alhambra
- Argenta
- Assumption
- Bartonville
- Bethany
- Blue Mound
- Bulpitt
- Carlinville
- Cowden
- Decatur Heights
- Decatur Township
- Downtown Decatur
- Edgewood
- Fairhaven
- Fairview Park
- Forsyth
- Garfield Estates
- Illiopolis
- Iuka
- Lakeview
- Long Creek
- Macon
- Maroa
- Morrisonville
- Mount Zion
- Moweaqua
- New Berlin
- Niantic
- North Decatur
- North Lake
- Owaneco
- Pana
- Richland Estates
- Sadorus
- South Decatur
- South Shores
- South Shores Estates
- Stonington
- Wabash
- Warrensburg