Macon County, Illinois Zip Codes by Population (2024)
The most populated Zip Code in Macon County, Illinois is 62521, located in Decatur. * 2024 populations estimated based on the latest ACS 5-year data.
Decatur | 33,453 |
Decatur | 30,572 |
Decatur | 15,010 |
Mt Zion | 6,684 |
Forsyth | 3,856 |
Maroa | 2,564 |
Argenta | 2,242 |
Oreana | 1,727 |
Macon | 1,600 |
Warrensburg | 1,319 |
Dalton City | 1,054 |
Niantic | 924 |
Decatur | 800 |
Boody | 380 |
Harristown | 329 |
Elwin | 64 |