Browse 45 active Oak Park, CA homes for sale in this unincorporated Ventura County community, with MLS-sourced prices, photos, property details, and map search.
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Oak Park inventory sits inside a single Ventura County community wrapped by the Simi Hills, and the listing set reflects that containment: master-planned tracts off a small number of collector streets rather than a spread of separate districts. Because the community is unincorporated, the county rather than a city hall answers permit, zoning and code questions on any parcel shown here, and that distinction survives the postal address.
as of Oct 18, 2026
Active MLS residential listings in Oak Park. How this is calculated
Oak Park is an unincorporated community in southeastern Ventura County, counted by the Census as the Oak Park CDP. There is no city government. Ventura County provides planning, building and safety, public works and floodplain functions, and the community's voice to the Board of Supervisors runs through the Oak Park Municipal Advisory Council, an advisory body under the District 2 supervisor rather than a council with authority. That structure surprises buyers arriving from Thousand Oaks or Agoura Hills expectations, and it changes where every permit and code question gets answered.
The county gives you two working tools for due diligence here. The What's My Zoning GIS tool identifies a zoning designation from a parcel or APN, and Ventura County Citizen Access exposes real-time land-use permit records, letting you search permits, review documents and check processing status. Treat both as preliminary research: overlays, entitlement history, legal nonconformities and easements still need confirmation with County Planning before a transaction or development decision rests on them.
Boundary discipline matters more than usual because Oak Park sits against Thousand Oaks, Agoura Hills, Westlake Village and the Santa Monica Mountains, and the surrounding amenities are frequently attributed to whichever community is being marketed. An amenity's managing agency and jurisdiction follow its actual location, not the listing copy. Parks and recreation for the community itself are provided by the Rancho Simi Recreation and Park District, the same independent special district that serves Simi Valley, formed in 1961.
One honest limit: the 2020 Census count is the reliable population figure for the CDP, and no current official annual estimate exists for it, so treat any present-tense population number you see quoted for Oak Park with suspicion.
Neither one. It is its own unincorporated community that the Census records as the Oak Park CDP, bordered by both of those cities plus Westlake Village. The bordering matters for commute and shopping, not for jurisdiction: county departments, not either city hall, handle land use here.
Marketing frequently attaches nearby Santa Monica Mountains parks and retail to whichever community is being sold. An amenity belongs to whoever manages it and wherever it physically sits. Recreation serving this community specifically comes from the Rancho Simi Recreation and Park District, an independent special district that also covers Simi Valley.
Two county tools do most of the work. What's My Zoning returns a designation from an APN, and Citizen Access shows land-use permit records as they stand. Treat both as a first pass: overlays, prior entitlements, legal nonconformity and easements need County Planning to confirm.
No. The decennial Census count for the CDP is the only reliable number, and no current annual estimate is published for this geography. Any present-tense figure quoted on a portal is an unofficial projection rather than a Census release.
