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Oak Park Homes and Neighborhood Guide
Oak Park is the largest unincorporated community in Ventura County, with 13,898 residents at the 2020 census, in the Simi Hills next to North Ranch (Thousand Oaks), Agoura Hills and Westlake Village, in ZIP code 91377.
Location: Oak Park, CA · ZIP 91377 · Area: Conejo Valley, Ventura County
Where Oak Park is
Oak Park is in southeastern Ventura County. North Ranch in Thousand Oaks borders it on the west, and the Los Angeles County cities of Agoura Hills and Westlake Village are to the south. Open space of the Santa Monica Mountains National Recreation Area borders it on the north and east. Elevations run from about 960 to 2,157 feet, and Medea Creek and Lindero Creek flow through the community.
Unincorporated county land
Oak Park was developed beginning in the late 1960s. Residents have voted against forming their own city and against annexation into Thousand Oaks, so Ventura County governs land use and services. In 1999 the Postal Service gave Oak Park its own ZIP code, 91377; before that it shared 91301 with Agoura Hills.
Schools
Oak Park has its own school district, the Oak Park Unified School District, which separated from the Simi Valley Unified School District by election in 1977. It includes Brookside, Oak Hills and Red Oak elementary schools, Medea Creek Middle School and Oak Park High School. School assignment depends on the exact address; confirm with the district.
Frequently Asked Questions
Is Oak Park part of Thousand Oaks?
No. Oak Park is unincorporated Ventura County. It borders the North Ranch area of Thousand Oaks.
What ZIP code is Oak Park?
91377, assigned in 1999. Before that, Oak Park shared 91301 with Agoura Hills.
What school district serves Oak Park?
The Oak Park Unified School District. Confirm assignment for a specific address with the district.
Can I see Oak Park homes for sale here?
Yes. The live MLS gallery on this page shows Oak Park homes for sale. For help with a specific home, call or text 805-953-6800.
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From G. Robert Arnold
Our office is at 3717 E Thousand Oaks Blvd in Westlake Village, and Ventura County is home turf for us, from the Conejo Valley to Camarillo, Oxnard and Ventura. Whether you are buying, selling, or doing both at once, I am glad to walk you through a neighborhood, a home, or what your own home could sell for.
— G. Robert Arnold, Broker, Premier Advantage Real Estate (CA DRE 00569840)
3717 E Thousand Oaks Blvd, Westlake Village, CA · 805-953-6800
Talk to the Broker
G. Robert Arnold, Broker
Premier Advantage Real Estate
CA DRE 00569840
Call or Text 805-953-6800
[email protected]
Call or Text 805-953-6800Get Your Complimentary Home Value
Buying? See Buyers Rebate Up To 1.5%.
Sources:
Information reviewed November 9, 2026. Boundaries, HOA details and school assignments change; verify with the HOA, the city or county and the school district before relying on them. Listings shown above are provided by Web4Realty from the MLS feed and change frequently; confirm availability and details before relying on them.