There are 26 zip codes in Sangamon County, Illinois. The most populated is 62704, located in Springfield. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 62704 | 40,495 | Springfield |
| 62702 | 32,539 | Springfield |
| 62703 | 28,809 | Springfield |
| 62711 | 17,759 | Springfield |
| 62629 | 15,245 | Chatham |
| 62712 | 10,275 | Springfield |
| 62707 | 7,725 | Springfield |
| 62563 | 5,759 | Rochester |
| 62684 | 5,669 | Sherman |
| 62615 | 5,490 | Auburn |
| 62561 | 5,107 | Riverton |
| 62558 | 3,489 | Pawnee |
| 62670 | 2,514 | New Berlin |
| 62677 | 2,176 | Pleasant Plains |
| 62693 | 1,805 | Williamsville |
| 62520 | 1,513 | Dawson |
| 62661 | 1,477 | Loami |
| 62530 | 1,415 | Divernon |
| 62545 | 1,296 | Mechanicsburg |
| 62539 | 1,151 | Illiopolis |
| 62701 | 1,078 | Springfield |
| 62515 | 1,059 | Buffalo |
| 62625 | 874 | Cantrall |
| 62536 | 741 | Glenarm |
| 62689 | 557 | Thayer |
| 62706 | 0 | Springfield |