Coles County, Illinois ZIP Codes

Zip Code
City
Population ↓
61920Charleston20,951
61938Mattoon20,350
61943Oakland1,396
61931Humboldt1,350
61912Ashmore1,255
62440Lerna1,107

Overview of ZIP Codes in Coles 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.
6
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 6 ZCTAs in Coles County, Illinois (US Census).

Sources

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

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