Sonoma County, California Property Taxes
Median Sonoma County effective property tax rate: 1.15%, slightly higher than the national median of 1.02%.
Median Sonoma County home value: $444,836
Median annual Sonoma County tax bill: $5,028, $2,628 higher than the national median property tax bill of $2,400.
How are property taxes in Sonoma County calculated?
Property taxes in Sonoma County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Santa Rosa or another part of Sonoma County, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Sonoma County, California Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.15%
Estimate Property Tax Bill
$5,116
$4,747
$1,102
Average Tax Savings
Property Tax Rates Across Sonoma County, California
Local government entities have the authority to set property tax rates, leading to significant variation within a state. Each year, counties like Sonoma in California estimate their budgetary needs to provide essential services. This budget is then divided by the total value of all taxable property within the county, resulting in the property tax rate. Although votes and legislation play roles in determining tax rates and budgets, this annual process is the core mechanism.
Comparing Sonoma County's effective property tax rate to other counties in California or the U.S. median property tax rate offers valuable insights. Sonoma County's rate exceeds the national median property tax rate of 1.02%. This reflects the county's unique financial needs and property values, which influence the rate-setting process. While some areas in California, such as Rio Nido, experience higher rates, others like Calistoga benefit from lower rates. Understanding these differences can help property owners make informed decisions and potentially explore property tax appeal and exemption opportunities.
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 Sonoma County Tax Rate
1.15%
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 California Tax Rate
1.21%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Sonoma County, California
City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
Agua Caliente | N/A | N/A | N/A | N/A | N/A |
Annapolis | 1.10% | 1.12% | 1.21% | 1.37% | 2.07% |
Bodega | 1.09% | 1.11% | 1.13% | 1.20% | 1.43% |
Bodega Bay | 1.10% | 1.12% | 1.14% | 1.18% | 1.29% |
Boyes Hot Springs | 1.36% | 1.41% | 1.62% | 2.05% | 3.33% |
Calistoga | 1.03% | 1.05% | 1.07% | 1.11% | 1.34% |
Camp Meeker | N/A | N/A | N/A | N/A | N/A |
Cazadero | 1.07% | 1.08% | 1.10% | 1.21% | 1.48% |
Cloverdale | 1.16% | 1.25% | 1.28% | 1.32% | 1.44% |
Cotati | 1.18% | 1.20% | 1.24% | 1.30% | 1.42% |
Duncans Mills | N/A | N/A | N/A | N/A | N/A |
El Verano | 1.28% | 1.39% | 1.57% | 2.12% | 2.84% |
Fetters Hot Springs | N/A | N/A | N/A | N/A | N/A |
Forestville | 1.15% | 1.18% | 1.29% | 1.76% | 3.61% |
Fulton | 1.10% | 1.12% | 1.14% | 1.18% | 1.30% |
Geyserville | 1.09% | 1.14% | 1.32% | 1.58% | 2.68% |
Glen Ellen | 1.12% | 1.16% | 1.27% | 1.54% | 2.16% |
Graton | 1.26% | 1.41% | 1.62% | 2.05% | 2.68% |
Gualala | N/A | N/A | N/A | N/A | N/A |
Guerneville | 1.20% | 1.47% | 1.78% | 2.50% | 4.86% |
Healdsburg | 1.14% | 1.15% | 1.17% | 1.21% | 1.30% |
Jenner | 1.12% | 1.15% | 1.21% | 1.41% | 1.91% |
Kenwood | 1.06% | 1.07% | 1.09% | 1.12% | 1.26% |
Mh Petaluma | N/A | N/A | N/A | N/A | N/A |
Mh Unincorp County | N/A | N/A | N/A | N/A | N/A |
Monte Rio | 1.15% | 1.20% | 1.28% | 1.52% | 2.12% |
Occidental | 1.11% | 1.13% | 1.17% | 1.36% | 1.84% |
Penngrove | 1.11% | 1.13% | 1.26% | 1.50% | 2.04% |
Petaluma | 1.08% | 1.09% | 1.10% | 1.13% | 1.18% |
Rio Nido | 1.59% | 1.83% | 2.20% | 3.28% | 7.29% |
Rohnert Park | 1.14% | 1.15% | 1.16% | 1.19% | 1.30% |
Santa Rosa | 1.06% | 1.08% | 1.10% | 1.14% | 1.24% |
Scottsdale | N/A | N/A | N/A | N/A | N/A |
Sea Ranch | 1.04% | 1.06% | 1.09% | 1.15% | 1.32% |
Sebastopol | 1.13% | 1.15% | 1.18% | 1.25% | 1.49% |
Sonoma | 1.15% | 1.23% | 1.36% | 1.56% | 1.95% |
The Sea Ranch | 1.05% | 1.08% | 1.12% | 1.22% | 1.36% |
Timber Cove | N/A | N/A | N/A | N/A | N/A |
Tulare | N/A | N/A | N/A | N/A | N/A |
Unincorp County | N/A | N/A | N/A | N/A | N/A |
Unknown | N/A | N/A | N/A | N/A | N/A |
Valley Ford | 1.10% | 1.11% | 1.13% | 1.23% | 1.62% |
Villa Grande | N/A | N/A | N/A | N/A | N/A |
Windsor | 1.16% | 1.18% | 1.20% | 1.23% | 1.28% |
Source: Ownwell
$1,102
Average Sonoma County Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Assessment Values Across Sonoma County, California
When examining property taxes in Sonoma County, 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 Sonoma County Assessor's 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:
Assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April.
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 Sonoma County.
For example, the median tax bill in Sonoma County is $4,929, with tax bills ranging significantly across the county. Sea Ranch has the highest median home price at $780,860.
Property Tax Assessment Values Across Sonoma County, California
Source: Ownwell

$180,448
$462,972
$745,496
Median Sonoma County Market Value
$444,836
Median California Market Value
$378,421
Median United States Market Value
$235,294
Property Tax Assessment Values Across Sonoma County, California
City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
Agua Caliente | N/A | N/A | N/A | N/A | N/A |
Annapolis | $23,616 | $83,787 | $180,448 | $347,590 | $509,271 |
Bodega | $52,383 | $135,033 | $541,350 | $775,615 | $1,060,800 |
Bodega Bay | $235,693 | $457,148 | $745,496 | $1,080,607 | $1,500,365 |
Boyes Hot Springs | $75,843 | $164,589 | $288,130 | $502,826 | $644,878 |
Calistoga | $29,663 | $116,570 | $398,237 | $862,312 | $1,506,201 |
Camp Meeker | N/A | N/A | N/A | N/A | N/A |
Cazadero | $25,374 | $86,435 | $244,582 | $430,990 | $588,574 |
Cloverdale | $121,815 | $237,403 | $396,498 | $573,625 | $712,693 |
Cotati | $155,148 | $272,396 | $414,909 | $621,000 | $830,613 |
Duncans Mills | N/A | N/A | N/A | N/A | N/A |
El Verano | $84,946 | $163,403 | $324,826 | $502,334 | $709,016 |
Fetters Hot Springs | N/A | N/A | N/A | N/A | N/A |
Forestville | $15,270 | $100,518 | $299,142 | $519,922 | $754,594 |
Fulton | $90,078 | $208,586 | $393,802 | $653,174 | $907,432 |
Geyserville | $37,784 | $147,882 | $400,083 | $699,760 | $1,300,388 |
Glen Ellen | $83,774 | $229,434 | $530,126 | $999,879 | $1,718,157 |
Graton | $96,400 | $206,891 | $396,093 | $637,041 | $820,924 |
Gualala | N/A | N/A | N/A | N/A | N/A |
Guerneville | $34,525 | $139,262 | $304,364 | $473,536 | $655,428 |
Healdsburg | $112,543 | $261,716 | $535,949 | $874,402 | $1,457,282 |
Jenner | $52,898 | $142,313 | $385,505 | $746,552 | $1,061,927 |
Kenwood | $67,480 | $227,266 | $569,355 | $1,013,284 | $1,932,033 |
Mh Petaluma | N/A | N/A | N/A | N/A | N/A |
Mh Unincorp County | N/A | N/A | N/A | N/A | N/A |
Monte Rio | $56,712 | $139,191 | $300,353 | $494,700 | $723,216 |
Occidental | $81,566 | $246,737 | $520,788 | $909,154 | $1,305,777 |
Penngrove | $117,543 | $287,078 | $611,626 | $955,148 | $1,276,825 |
Petaluma | $128,591 | $280,076 | $481,417 | $720,378 | $953,015 |
Rio Nido | $39,735 | $111,705 | $247,150 | $375,298 | $522,440 |
Rohnert Park | $160,125 | $253,334 | $386,298 | $595,526 | $736,160 |
Santa Rosa | $132,776 | $259,713 | $427,409 | $627,236 | $836,474 |
Scottsdale | N/A | N/A | N/A | N/A | N/A |
Sea Ranch | $189,211 | $445,888 | $780,860 | $1,300,500 | $1,860,066 |
Sebastopol | $117,441 | $266,676 | $510,000 | $828,641 | $1,150,000 |
Sonoma | $161,406 | $307,383 | $544,950 | $870,101 | $1,533,256 |
The Sea Ranch | $291,025 | $477,937 | $729,285 | $1,044,428 | $1,501,599 |
Timber Cove | N/A | N/A | N/A | N/A | N/A |
Tulare | N/A | N/A | N/A | N/A | N/A |
Unincorp County | N/A | N/A | N/A | N/A | N/A |
Unknown | N/A | N/A | N/A | N/A | N/A |
Valley Ford | $31,975 | $107,529 | $482,269 | $876,234 | $1,081,417 |
Villa Grande | N/A | N/A | N/A | N/A | N/A |
Windsor | $235,494 | $332,232 | $491,535 | $671,057 | $827,117 |
Source: Ownwell
$1,102
Average Sonoma County Tax Savings
Save on your property taxes & more with Ownwell
Property Tax Bills Across Sonoma County, California
Median Sonoma County Tax Bill
$5,028
Median California Tax Bill
$4,683
Median United States Tax Bill
$2,400
Property Tax Bills Across Sonoma County, California
City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
Agua Caliente | N/A | N/A | N/A | N/A | N/A |
Annapolis | $506 | $1,247 | $2,276 | $3,948 | $5,387 |
Bodega | $547 | $1,598 | $5,303 | $8,545 | $11,489 |
Bodega Bay | $2,768 | $5,196 | $8,255 | $11,624 | $15,884 |
Boyes Hot Springs | $2,310 | $3,357 | $4,848 | $7,253 | $8,819 |
Calistoga | $291 | $1,190 | $3,935 | $8,856 | $15,887 |
Camp Meeker | N/A | N/A | N/A | N/A | N/A |
Cazadero | $405 | $1,116 | $2,766 | $4,672 | $6,350 |
Cloverdale | $1,552 | $2,952 | $4,880 | $7,032 | $8,731 |
Cotati | $1,909 | $3,226 | $4,981 | $7,387 | $9,603 |
Duncans Mills | N/A | N/A | N/A | N/A | N/A |
El Verano | $2,324 | $3,431 | $5,129 | $7,333 | $9,618 |
Fetters Hot Springs | N/A | N/A | N/A | N/A | N/A |
Forestville | $468 | $1,529 | $3,917 | $6,561 | $9,209 |
Fulton | $1,068 | $2,449 | $4,422 | $7,207 | $9,889 |
Geyserville | $1,075 | $2,966 | $5,477 | $8,512 | $14,368 |
Glen Ellen | $1,743 | $3,512 | $6,700 | $11,677 | $19,573 |
Graton | $2,676 | $4,023 | $6,412 | $9,158 | $11,205 |
Gualala | N/A | N/A | N/A | N/A | N/A |
Guerneville | $2,530 | $3,653 | $5,409 | $7,494 | $9,340 |
Healdsburg | $1,304 | $2,931 | $5,989 | $9,645 | $15,571 |
Jenner | $1,072 | $1,979 | $4,661 | $8,446 | $11,767 |
Kenwood | $994 | $2,786 | $6,173 | $10,960 | $21,014 |
Mh Petaluma | N/A | N/A | N/A | N/A | N/A |
Mh Unincorp County | N/A | N/A | N/A | N/A | N/A |
Monte Rio | $1,054 | $1,962 | $3,657 | $5,629 | $8,151 |
Occidental | $1,647 | $3,346 | $6,510 | $10,492 | $14,644 |
Penngrove | $1,688 | $4,267 | $7,693 | $11,906 | $15,298 |
Petaluma | $1,141 | $2,956 | $5,180 | $7,720 | $10,231 |
Rio Nido | $2,823 | $3,651 | $5,198 | $6,548 | $8,252 |
Rohnert Park | $1,346 | $2,568 | $4,139 | $6,461 | $8,860 |
Santa Rosa | $1,168 | $2,668 | $4,546 | $6,749 | $9,051 |
Scottsdale | N/A | N/A | N/A | N/A | N/A |
Sea Ranch | $2,649 | $4,639 | $7,660 | $12,966 | $18,246 |
Sebastopol | $1,540 | $3,195 | $5,845 | $9,344 | $12,805 |
Sonoma | $2,450 | $4,475 | $7,139 | $10,651 | $17,366 |
The Sea Ranch | $3,666 | $5,699 | $8,204 | $11,168 | $15,649 |
Timber Cove | N/A | N/A | N/A | N/A | N/A |
Tulare | N/A | N/A | N/A | N/A | N/A |
Unincorp County | N/A | N/A | N/A | N/A | N/A |
Unknown | N/A | N/A | N/A | N/A | N/A |
Valley Ford | $810 | $2,049 | $5,514 | $9,529 | $11,980 |
Villa Grande | N/A | N/A | N/A | N/A | N/A |
Windsor | $2,453 | $3,885 | $5,661 | $7,724 | $9,511 |
Source: Ownwell
$1,102
Average Sonoma County Tax Savings
Save on your property taxes & more with Ownwell
Want to lower your Sonoma County property taxes?
Property Tax Appeals in California
In Sonoma County, CA, homeowners who believe their property tax assessments are inaccurate have the opportunity to appeal through a structured process. The first step involves filing an appeal with the Assessment Appeals Board, the body responsible for hearing and deciding on these matters. Homeowners must provide evidence that their property's assessed value is higher than its market value. This can include recent sales data of comparable properties, independent appraisals, or evidence of discrepancies in the assessment.
Once the appeal is filed, a hearing is scheduled where the homeowner can present their case. The process may involve negotiations with the county assessor's office to reach an agreement before a formal hearing. If an agreement isn't reached, the case proceeds to a hearing where the Assessment Appeals Board reviews the evidence and makes a decision. Potential outcomes include a reduction in the assessed value, which can lead to a lower property tax bill, or a decision to maintain the current assessment if the evidence doesn't support a change.
Ownwell offers expertise to guide homeowners through this complex process. Our team assists in gathering the necessary evidence, preparing the appeal, and representing homeowners during negotiations or hearings. With our experience in property tax appeals, we help ensure that homeowners present the strongest case possible. By leveraging our knowledge and resources, we aim to achieve a favorable outcome, potentially reducing the property tax burden for our clients. Trust Ownwell to navigate the intricacies of the property tax appeal process and advocate effectively on your behalf.
Exemptions in California
In Sonoma County, California, homeowners can benefit from several property tax exemption programs designed to reduce their tax burden. The most notable is the Homeowners' Exemption, which offers a reduction in the assessed value for primary residences. To qualify, the property must be the owner's principal place of residence as of January 1st of the tax year. This exemption provides a modest reduction in property taxes, making it a valuable option for eligible homeowners.
Another key exemption is the Veterans' Exemption, available to disabled veterans or their unmarried surviving spouses. This program provides a significant reduction in assessed value, thereby lowering the property tax bill. Eligibility criteria include California residency and a service-connected disability rating.
Seniors aged 55 and older may qualify for the Senior Citizens' Exemption, which allows eligible seniors to transfer their current property tax base to a new home of equal or lesser value, under specific conditions. This can result in substantial tax savings when downsizing or relocating within the state.
Homeowners in Sonoma County can apply for these exemptions by submitting the necessary forms to the local assessor's office. Ownwell assists homeowners by guiding them through the application process, ensuring they understand eligibility requirements and deadlines. With expert support, homeowners can maximize their savings and take full advantage of available property tax exemptions.
Available Exemptions
Disabled
Home Stead
Solar/Wind
Non-Profit
Don't miss the deadline to appeal!
Dates | |
---|---|
Property Valuation Date | January 1 |
Appeal Deadline | December 1 |
Tax Bill | |
Issued | October 1 |
Due Date #1 | December 10 |
Due Date #2 | April 10 |
Links | |
---|---|
Sonoma Tax Assessor | |
Website | assr.parcelquest.com |
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