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Overview of ZIP Codes in Martin 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.
3
ZIP Codes
The data shown reflect ZCTAs from the US Census. As of 2025, there
are 3 ZCTAs in Martin County, Indiana (US Census).