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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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Cameron County ZIP Codes

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

County State ZIP Code City Area Codes
Cameron County TX 78551 Harlingen 956
Cameron County TX 78552 Harlingen 956
Cameron County TX 78553 Harlingen 956
Cameron County TX 78559 La Feria 956
Cameron County TX 78566 Los Fresnos 956
Cameron County TX 78567 Los Indios 956
Cameron County TX 78568 Lozano 956
Cameron County TX 78575 Olmito 956
Cameron County TX 78578 Port Isabel 956
Cameron County TX 78583 Rio Hondo 956
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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.