| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 60518 | Earlville | LaSalle County | Standard |
| 60530 | Lee | Lee County | Standard |
| 60553 | Steward | Lee County | Standard |
| 61006 | Ashton | Lee County | Standard |
| 61021 | Dixon | Lee County | Standard |
| 61031 | Franklin Grove | Lee County | Standard |
| 61042 | Harmon | Lee County | Standard |
| 61057 | Nachusa | Lee County | PO Box |
| 61068 | Rochelle | Ogle County | Standard |
| 61071 | Rock Falls | Whiteside County | Standard |
| 61081 | Sterling | Whiteside County | Standard |
| 61243 | Deer Grove | Whiteside County | Standard |
| 61310 | Amboy | Lee County | Standard |
| 61318 | Compton | Lee County | Standard |
| 61324 | Eldena | Lee County | PO Box |
| 61330 | La Moille | Bureau County | Standard |
| 61331 | Lee Center | Lee County | PO Box |
| 61342 | Mendota | LaSalle County | Standard |
| 61349 | Ohio | Bureau County | Standard |
| 61353 | Paw Paw | Lee County | Standard |
| 61367 | Sublette | Lee County | Standard |
| 61376 | Walnut | Bureau County | Standard |
| 61378 | West Brooklyn | Lee County | Standard |