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U.S. ZIP Codes Database 2026

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Toa Alta ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Toa Alta.

County State ZIP Code City Area Codes
Toa Alta Municipio PR 00953 Toa Alta 787, 939
Toa Alta PR 00954 Toa Alta 787, 939

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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.