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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.

42,735 verified records
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San Diego County ZIP Codes

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

County State ZIP Code City Area Codes
San Diego County CA 92152 San Diego 619
San Diego County CA 92153 San Diego 619
San Diego County CA 92154 San Diego 619, 858
San Diego County CA 92155 San Diego 619, 858
San Diego County CA 92158 San Diego 619
San Diego County CA 92159 San Diego 619
San Diego County CA 92160 San Diego 619
San Diego County CA 92161 San Diego 619, 858
San Diego County CA 92162 San Diego 619
San Diego County CA 92163 San Diego 619
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Geographic Map of San Diego County

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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.