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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Pinal County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Pinal County.

County State ZIP Code City Area Codes
Pinal County AZ 85117 Apache Junction 480
Pinal County AZ 85118 Gold Canyon 480, 520, 928
Pinal County AZ 85119 Apache Junction 480
Pinal County AZ 85120 Apache Junction 480
Pinal County AZ 85121 Bapchule 520
Pinal County AZ 85122 Casa Grande 520
Pinal County AZ 85123 Arizona City 520
Pinal County AZ 85128 Coolidge 480, 520
Pinal County AZ 85130 Casa Grande 480, 520
Pinal County AZ 85131 Eloy 520
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.