Idaho Zip Codes

325 Zip Codes serve Idaho

Overview

The zip code system in Idaho, as in the rest of the United States, is a numerical code assigned to specific geographic areas to facilitate the efficient sorting and delivery of mail. Idaho's zip codes typically start with the digits 83 or 84. The first digit indicates a general region, with the 83 series generally associated with the eastern part of the state, while the 84 series corresponds to the western region. Subsequent digits further narrow down the location. For example, lower numbers in the second and third positions often represent northern areas, while higher numbers signify southern regions within the state. This system helps postal services streamline mail distribution and is essential for organizing and delivering correspondence accurately and promptly across Idaho's diverse landscapes and communities.

Idaho Zip Codes List