Ventura County, California has 47 ZIP codes in this list, from 91319 to 93099. They cover 19 places, among them Ventura, Oxnard, Simi Valley and Thousand Oaks.
The ZIP code areas of Ventura County add up to about 1,378 square miles of land (3,569 sq km) as the Census Bureau draws them. The largest is 93040 (Piru), with 372 square miles.
Places with more than one code here: Ventura (8 codes), Oxnard (7 codes), Simi Valley (5 codes).
Using these codes
In an address, the ZIP code comes last, after the city and the two-letter state: Newbury Park, CA 91319.
Tap a ZIP code to open it in the look-up, with a copy button for the address line.
A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
"No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.
ZIP Codes