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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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Ventura County ZIP Codes

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

County State ZIP Code City Area Codes
Ventura County CA 91319 Newbury Park 805
Ventura County CA 91320 Newbury Park 310, 424, 805, 820
Ventura County CA 91358 Thousand Oaks 805
Ventura County CA 91360 Thousand Oaks 805, 820
Ventura County CA 91361 Westlake Village 310, 424, 747, 805, 818, 820
Ventura County CA 91362 Thousand Oaks 747, 805, 818, 820
Ventura County CA 91377 Oak Park 747, 805, 818, 820
Ventura County CA 93001 Ventura 805, 820
Ventura County CA 93002 Ventura 805
Ventura County CA 93003 Ventura 805, 820
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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.