Lee County, Illinois ZIP Codes

14 ZIP Codes

Zip Code
City
Population ↓
61021Dixon22,308
61310Amboy3,347
61006Ashton1,541
61031Franklin Grove1,492
61353Paw Paw1,282
60530Lee992
61367Sublette843
60553Steward722
61318Compton595
61378West Brooklyn513
61042Harmon404
61324Eldena97
61057Nachusa30
61331Lee Center0

Overview of ZIP Codes in Lee County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
14
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 14 ZCTAs in Lee County, Illinois (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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