Zip Code | City | Population |
|---|---|---|
| 61764 | Pontiac | 13,688 |
| 60420 | Dwight | 4,746 |
| 61739 | Fairbury | 4,635 |
| 61741 | Forrest | 1,635 |
| 61740 | Flanagan | 1,556 |
| 60921 | Chatsworth | 1,523 |
| 60460 | Odell | 1,319 |
| 61319 | Cornell | 1,297 |
| 61769 | Saunemin | 673 |
| 60929 | Cullom | 624 |
| 61333 | Long Point | 270 |
| 61775 | Strawn | 240 |
| 61313 | Blackstone | 232 |
| 61311 | Ancona | 217 |
| 60934 | Emington | 208 |
| 60920 | Campus | 204 |
| 61743 | Graymont | 165 |