Marshall County, Illinois ZIP Codes

Zip Code
City
Population ↓
61540Lacon2,753
61537Henry2,743
61369Toluca1,594
61565Sparland1,262
61375Varna989
61541La Rose97
61479Speer95
61424Camp Grove20

Overview of ZIP Codes in Marshall 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.
8
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 8 ZCTAs in Marshall County, Illinois (US Census).

Sources

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

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