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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 Jacinto County ZIP Codes

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

County State ZIP Code City Area Codes
San Jacinto County TX 77331 Coldspring 281, 346, 713, 832, 936
San Jacinto County TX 77359 Oakhurst 936
San Jacinto County TX 77364 Pointblank 936
San Jacinto County TX 77371 Shepherd 281, 346, 713, 832, 936

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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.