El Portal, Mariposa County, California Property Taxes
Property Taxes in El Portal, California
Median El Portal, California effective property tax rate: 1.02%, significantly lower than the national median of 1.02%, and lower than the California state median of 1.21%.
Median El Portal, California home value: $186,601
Median annual El Portal, California tax bill: $1,896, $504 lower than the national median property tax bill of $2,400.
How are property taxes in Mariposa calculated?
Property taxes in El Portal, 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 El Portal's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in El Portal, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
El Portal, Mariposa County, California Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.02%
Estimate Property Tax Bill
$1,903
$1,766
How Does the El Portal Property Tax Calculator Work?
Use this El Portal property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies El Portal's median effective tax rate of 1.02% — based on actual property records in Mariposa County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessment system uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies El Portal'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 El Portal: rates range from 1.02% in 95318 to 1.02% in 95318, 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 El Portal.
About El Portal Property Taxes
About Property Taxes in El Portal, Mariposa, California
El Portal’s median effective property tax rate of 1.02% is lower than the California state median of 1.21% and lower than the national median of 1.02%. This rate reflects the Mariposa County base levy combined with local school district levies and Mello-Roos Community Facility Districts that vary by subdivision throughout the city.
Property tax rates are not uniform across El Portal. Homeowners in the 95318 ZIP code carry a median effective rate of 1.02%, while those in the lowest ZIP also pay 1.02%. This spread reflects how school district boundaries and local assessment districts are drawn across Mariposa County. Understanding which part of El Portal you live in can make a meaningful difference to your annual tax bill.
El Portal homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the November 30, 2025 deadline each year.
If your estimated bill above 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 El Portal, Mariposa 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 El Portal'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 El Portal Tax Rate
1.02%
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 Mariposa County Tax Rate
1.05%
Median Effective California Tax Rate
1.21%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across El Portal, Mariposa County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 95318 | 0.93% | 0.99% | 1.02% | 1.05% | 1.05% |
Source: Ownwell
Property Tax Assessment Values Across El Portal, Mariposa County, California
When examining property taxes in El Portal, 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. The Mariposa County appraisal district 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 Mariposa County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.
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. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in El Portal.
For example, the median home price in El Portal is $186,601, with tax bills ranging significantly across the county. 95318 has the highest median home price at $186,601.
Property Tax Assessment Values Across El Portal, Mariposa County, California
Source: Ownwell
$87,034
$202,850
$318,665
Median El Portal Market Value
$186,601
Median Mariposa County Market Value
$202,340
Median California Market Value
$427,605
Median United States Market Value
$235,294
Property Tax Assessment Values Across El Portal, Mariposa County, California
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 95318 | $58,075 | $104,994 | $186,601 | $277,229 | $433,368 |
Source: Ownwell
Property Tax Bills Across El Portal, Mariposa County, California
Property tax bills in El Portal are based on the assessed value of a home and the local tax rate set for Mariposa County. When a property’s market value changes, the assessed value can also change, which affects the amount owed each year. For a home with a median price of $186,601, the typical tax bill reflects how local assessments and tax rates combine to determine the final amount.
Homeowners in El Portal may see different bills depending on their property’s value, exemptions, and any local levies included in the tax rate. The tax bill is not the same for every home, and higher-valued properties generally face larger bills. In this area, the median tax bill is $1,896.00, while bills can range from $1,087 at the 25th percentile to $4,508 at the 90th percentile. That means property taxes can have a meaningful impact on household budgets, especially when assessed values rise.
Median El Portal Tax Bill
$1,896
Median Mariposa County Tax Bill
$2,178
Median California Tax Bill
$5,134
Median United States Tax Bill
$2,400
Property Tax Bills Across El Portal, Mariposa County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 95318 | $563 | $1,087 | $1,896 | $2,885 | $4,508 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | November 30 |
Links | |
|---|---|
| Mariposa Tax Assessor | |
| Website | assr.parcelquest.com |