Jefferson County, Idaho ZIP Codes

Zip Code
City
Population ↓
83442Rigby25,609
83434Menan1,816
83444Roberts1,261
83450Terreton1,207
83431Lewisville1,045
83425Hamer622
83435Monteview600

Overview of ZIP Codes in Jefferson 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.
7
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 7 ZCTAs in Jefferson County, Idaho (US Census).

Sources

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

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