Angwin, Napa County, California Property Taxes
Property Taxes in Angwin, California
Median Angwin, California effective property tax rate: 1.04%, significantly higher than the national median of 1.02%, and lower than the California state median of 1.21%.
Median Angwin, California home value: $534,950
Median annual Angwin, California tax bill: $5,626, $3,226 higher than the national median property tax bill of $2,400.
How are property taxes in Napa calculated?
Property taxes in Angwin, 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 Angwin's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Angwin, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Angwin, Napa County, California Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.04%
Estimate Property Tax Bill
$5,563
$5,163
How Does the Angwin Property Tax Calculator Work?
Use this Angwin property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Angwin's median effective tax rate of 1.04% — based on actual property records in Napa 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 Angwin'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 Angwin: rates range from 1.04% in 94508 to 1.04% in 94508, 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 Angwin.
About Angwin Property Taxes
About Property Taxes in Angwin, Napa, California
Angwin’s median effective property tax rate of 1.04% is lower than the California state median of 1.21% and higher than the national median of 1.02%. This rate reflects Napa County’s assessed value system and local levies that shape what homeowners pay each year.
Property tax rates are not uniform across Angwin. Homeowners in the 94508 ZIP code carry a median effective rate of 1.04%, and the same ZIP also shows the city’s median tax bill of $5,626. That bill is well above the national median property tax bill of $2,400.
Angwin homeowners who believe their assessed value is too high can file a formal appeal with the Napa 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 Angwin, Napa 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 Angwin'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 Angwin Tax Rate
1.04%
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 Napa County Tax Rate
1.24%
Median Effective California Tax Rate
1.21%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Angwin, Napa County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 94508 | 1.03% | 1.04% | 1.04% | 1.05% | 1.07% |
Source: Ownwell
Property Tax Assessment Values Across Angwin, Napa County, California
When examining property taxes in Angwin, 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 Napa County assessment office 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 Napa County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.
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 Angwin.
For example, the median home price in Angwin is $534,950, with tax bills ranging significantly across the county. 94508 has the highest median home price at $535,500.
Property Tax Assessment Values Across Angwin, Napa County, California
Source: Ownwell
$243,131
$1,223,537
$2,203,942
Median Angwin Market Value
$534,950
Median Napa County Market Value
$488,969
Median California Market Value
$427,605
Median United States Market Value
$235,294
Property Tax Assessment Values Across Angwin, Napa County, California
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 94508 | $135,246 | $286,999 | $535,500 | $811,332 | $1,234,704 |
Source: Ownwell
Property Tax Bills Across Angwin, Napa County, California
Angwin property tax bills are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value determined by the county. For a home with a median home price of $534,950, the tax bill can vary widely depending on the assessed value, local levies, and any applicable exemptions or special assessments.
What does this mean for homeowners? A higher assessed value usually leads to a larger property tax bill, while a lower assessed value can reduce what is owed. In Angwin, the median tax bill is $5,626 in ZIP code 94508, which is well above the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. Bills at the 25th percentile are $2,952, while the 75th percentile reaches $8,489 and the 90th percentile climbs to $12,928.
Because property taxes are a recurring cost, they can have a meaningful impact on monthly housing expenses and long-term affordability for homeowners.
Median Angwin Tax Bill
$5,626
Median Napa County Tax Bill
$6,259
Median California Tax Bill
$5,134
Median United States Tax Bill
$2,400
Property Tax Bills Across Angwin, Napa County, California
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 94508 | $1,285 | $2,957 | $5,626 | $8,496 | $12,939 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | November 30 |
Links | |
|---|---|
| Napa Tax Assessor | |
| Website | common1.mptsweb.com |