Oak Park, CA ZIP Codes & Directory
Oak Park is located in Ventura County in California. Browse all active 5-digit USPS ZIP codes serving Oak Park and surrounding Ventura County delivery districts.
All ZIP Codes in Oak Park, CA
1 CodesAbout Oak Park Mail Delivery & Postal Administration
ZIP codes in Oak Park are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Ventura County and surrounding California metropolitan districts.
Frequently Asked Questions About Oak Park, CA ZIP Codes
How many ZIP codes serve Oak Park, California? ▾
Oak Park, California is served by 1 active USPS postal delivery codes: 91377.
What county is Oak Park located in? ▾
Oak Park is an incorporated city located within Ventura County, California.
What is the population and demographic size of Oak Park? ▾
According to official U.S. Census Bureau data, Oak Park has an estimated population of 13,898 residents and is situated within the undefined.
How does mail sorting and delivery work in Oak Park? ▾
Mail delivery in Oak Park is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Ventura County and surrounding California counties.
How much does it cost to ship a package to Oak Park, CA? ▾
Shipping costs to Oak Park depend on the package weight, dimensions, shipping carrier (USPS, UPS, FedEx), and the distance from the origin ZIP code. To calculate exact postage rates, use our shipping cost estimator tool.
What is the standard delivery time for mail to Oak Park? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Oak Park, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.