U.S. postal lookup

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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Orange County ZIP Codes

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

County State ZIP Code City Area Codes
Orange County CA 90620 Buena Park 657, 714
Orange County CA 90621 Buena Park 657, 714
Orange County CA 90622 Buena Park 714
Orange County CA 90623 La Palma 562, 657, 714
Orange County CA 90624 Buena Park 714
Orange County CA 90630 Cypress 562, 657, 714
Orange County CA 90631 La Habra 562, 626, 657, 714
Orange County CA 90632 La Habra 714
Orange County CA 90633 La Habra 714
Orange County CA 90680 Stanton 657, 714
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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.