Lee County, Illinois ZIP codes
14 ZIP codes are in Lee County, plus 10 that cross in from neighboring counties. It's part of the Dixon, IL micro area.
- ZIP codes
- 14
- Population in these ZIPs
- 34,166
- Avg. median income
- $71,300population-weighted
- Cities & towns
- 14
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Lee County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 60530 | Lee | 992 | $96,250 | $264,600 |
| 60553 | Steward | 722 | $109,375 | $283,500 |
| 61006 | Ashton | 1,541 | $75,938 | $198,700 |
| 61021 | Dixon | 22,308 | $69,127 | $180,400 |
| 61031 | Franklin Grove | 1,492 | $75,446 | $197,600 |
| 61042 | Harmon | 404 | $70,833 | $206,500 |
| 61057 | Nachusa | 30 | — | — |
| 61310 | Amboy | 3,347 | $69,756 | $187,100 |
| 61318 | Compton | 595 | $63,021 | $202,000 |
| 61324 | Eldena | 97 | — | — |
| 61331 | Lee Center | 0 | — | — |
| 61353 | Paw Paw | 1,282 | $66,719 | $238,000 |
| 61367 | Sublette | 843 | $60,824 | $214,800 |
| 61378 | West Brooklyn | 513 | $85,350 | $286,300 |
ZIP codes partly in Lee County
These ZIP codes are mostly in a neighboring county but cover part of Lee County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 60518 | Earlville | LaSalle County | 3,289 | $69,980 | $246,400 |
| 61064 | Polo | Ogle County | 3,757 | $75,386 | $179,400 |
| 61068 | Rochelle | Ogle County | 14,788 | $73,214 | $216,800 |
| 61071 | Rock Falls | Whiteside County | 13,581 | $60,508 | $122,100 |
| 61081 | Sterling | Whiteside County | 20,844 | $67,586 | $145,900 |
| 61243 | Deer Grove | Whiteside County | 155 | $148,309 | $172,700 |
| 61330 | La Moille | Bureau County | 1,182 | $69,005 | $177,200 |
| 61342 | Mendota | LaSalle County | 8,543 | $65,348 | $177,300 |
| 61349 | Ohio | Bureau County | 1,151 | $71,375 | $158,600 |
| 61376 | Walnut | Bureau County | 1,894 | $61,200 | $154,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Lee County
Nearby counties
Frequently asked questions
How many ZIP codes are in Lee County, Illinois?
14 ZIP codes are mainly in Lee County, and 10 more ZIP codes from neighboring areas reach partly into it.
What cities are in Lee County?
ZIP codes in Lee County use the city names Amboy, Ashton, Compton, Dixon, Eldena, Franklin Grove, Harmon, Lee, Lee Center, Nachusa, Paw Paw and Steward and others.
What metro area is Lee County in?
Lee County is part of the Dixon, IL micropolitan statistical area.