14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 61021 | Dixon | 22,690 |
| 61310 | Amboy | 3,532 |
| 61031 | Franklin Grove | 1,615 |
| 61006 | Ashton | 1,361 |
| 61353 | Paw Paw | 1,219 |
| 60530 | Lee | 1,022 |
| 61367 | Sublette | 814 |
| 60553 | Steward | 681 |
| 61318 | Compton | 615 |
| 61378 | West Brooklyn | 606 |
| 61042 | Harmon | 410 |
| 61324 | Eldena | 112 |
| 61057 | Nachusa | 41 |
| 61331 | Lee Center | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in Lee County, Illinois (US Census).