Oak Park, Ventura County, California Property Taxes
Property Taxes in Oak Park, California
Median Oak Park, California effective property tax rate: 1.35%, significantly higher than the national median of 1.02%, and higher than the California state median of 1.21%.
Median Oak Park, California home value: $652,904
Median annual Oak Park, California tax bill: $8,671, $6,271 higher than the national median property tax bill of $2,400.
How are property taxes in Ventura calculated?
Property taxes in Oak Park, California are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Oak Park's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Oak Park, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Oak Park, Ventura County, California Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.35%
Estimate Property Tax Bill
$8,814
$8,179
How Does the Oak Park Property Tax Calculator Work?
Use this Oak Park property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Oak Park's median effective tax rate of 1.35% — based on actual property records in Ventura County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Oak Park's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Oak Park: rates range from 1.35% in 91377 to 1.35% in 91377, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Oak Park.
About Oak Park Property Taxes
About Property Taxes in Oak Park, Ventura, California
Oak Park’s median effective property tax rate of 1.35% is higher than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects Ventura County levies along with local school district charges that shape property taxes across the area.
Property tax rates are not uniform across Oak Park. Homeowners in ZIP code 91377 carry a median effective rate of 1.35%, and the same ZIP code also shows a median tax bill of $8,671. That local variation can make a meaningful difference to your annual property tax bill.
Oak Park homeowners who believe their assessed value is too high can file a formal appeal with the Ventura County Tax Assessor before the November 30, 2026 deadline each year.
If your estimated bill seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Oak Park, Ventura County, California
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Oak Park's effective property tax rate to other cities in California and the median property tax rates in California and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Oak Park Tax Rate
1.35%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Ventura County Tax Rate
1.15%
Median Effective California Tax Rate
1.21%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Oak Park, Ventura County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 91377 | 1.24% | 1.28% | 1.35% | 1.46% | 1.72% |
Source: Ownwell
Property Tax Assessment Values Across Oak Park, Ventura County, California
When examining property taxes in Oak Park, California, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. Ventura County estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Ventura County, assessment notices are sent in July each year. They'll typically reach your mailbox by the middle of July.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For Oak Park, the median home price is $652,904, with tax bills ranging significantly across the county. Zip code 91377 has the highest median home price at $652,904.
Property Tax Assessment Values Across Oak Park, Ventura County, California
Source: Ownwell
$46,419
$922,777
$1,799,134
Median Oak Park Market Value
$652,904
Median Ventura County Market Value
$506,609
Median California Market Value
$427,605
Median United States Market Value
$235,294
Property Tax Assessment Values Across Oak Park, Ventura County, California
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 91377 | $238,955 | $431,030 | $652,904 | $957,952 | $1,274,582 |
Source: Ownwell
Property Tax Bills Across Oak Park, Ventura County, California
Property tax bills in Oak Park are based on the assessed value of a home, which is tied to its market value and the local tax rate. For homeowners in Ventura County, the median home price is $652,904, and that value helps determine the size of the annual bill. The amount owed can vary widely depending on the property’s assessed value, exemptions, and any local levies that apply.
In Oak Park, the tax burden is notably higher than the national median property tax bill of $2,400. The median property tax bill is $8,671 in ZIP code 91377, and bills can range from $6,206 at the 25th percentile to $12,129 at the 75th percentile, with the 90th percentile reaching $15,712. This means homeowners with higher assessed values or fewer exemptions may pay substantially more each year, making property taxes an important part of the overall cost of owning a home.
Median Oak Park Tax Bill
$8,671
Median Ventura County Tax Bill
$5,829
Median California Tax Bill
$5,134
Median United States Tax Bill
$2,400
Property Tax Bills Across Oak Park, Ventura County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 91377 | $4,037 | $6,206 | $8,671 | $12,129 | $15,712 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Property Valuation Date | January 1 |
| Appeal Deadline | November 30 |
| Tax Bill | |
| Issued | October 1 |
| Due Date #1 | December 10 |
| Due Date #2 | April 10 |
Links | |
|---|---|
| Ventura Tax Assessor | |
| Website | assessor.countyofventura.org |