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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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San Patricio County ZIP Codes

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

County State ZIP Code City Area Codes
San Patricio County TX 78336 Aransas Pass 361
San Patricio County TX 78352 Edroy 361
San Patricio County TX 78359 Gregory 361
San Patricio County TX 78362 Ingleside 361
San Patricio County TX 78368 Mathis 361
San Patricio County TX 78370 Odem 361
San Patricio County TX 78374 Portland 361
San Patricio County TX 78387 Sinton 361
San Patricio County TX 78390 Taft 361

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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.