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San Gregorio, San Mateo County, California Property Taxes

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Property Taxes in San Gregorio, California

  • Median San Gregorio, California effective property tax rate: 1.08%, significantly lower than the national median of 1.02%, and lower than the California state median of 1.21%.

  • Median San Gregorio, California home value: $888,694

  • Median annual San Gregorio, California tax bill: $8,045, higher than the national median property tax bill of $2,400.

How are property taxes in San Mateo calculated?

Property taxes in San Gregorio, 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 San Gregorio's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in San Gregorio, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

San Gregorio, San Mateo County, California Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.08%

Estimate Property Tax Bill

$9,598

$8,907

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the San Gregorio Property Tax Calculator Work?

Use this San Gregorio property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies San Gregorio's median effective tax rate of 1.08% — based on actual property records in San Mateo County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment 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 San Gregorio'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 San Gregorio: rates range from 1.08% in 94074 to 1.08% in 94074, primarily due to differences in school district levies and local assessment districts. San Gregorio's median property tax bill is $8,045, which is higher than the California median and higher than the national median property tax bill of $2,400.

If your estimate is higher than expected, Ownwell can appeal your San Gregorio assessment — you only pay if we save you money.

About San Gregorio Property Taxes

About Property Taxes in San Gregorio, San Mateo, California

San Gregorio's median effective property tax rate of 1.08% is lower than the California state median of 1.21% and lower than the national median of 1.02%. This rate reflects the San Mateo County base levy combined with local school district levies and other local assessments that can vary by area.

Property tax rates are not uniform across San Gregorio. Homeowners in the 94074 ZIP code carry a median effective rate of 1.08%, while the same ZIP also reflects a median tax bill of $8,045 and a median home price of $888,694. Understanding how assessed value and local levies work can make a meaningful difference to your annual tax bill.

San Gregorio homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the December 1, 2026 deadline each year. Notices are typically sent in October.

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 San Gregorio, San Mateo 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 San Gregorio's effective property tax rate to other cities in California and the median property tax rates in California and the U.S.

Property Tax Rates Across San Gregorio, San Mateo County, California

Source: Ownwell

1.07%

1.27%

1.47%

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 San Gregorio Tax Rate

1.08%

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 San Mateo County Tax Rate

1.23%

Median Effective California Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across San Gregorio, San Mateo County, California

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
940741.05%1.07%1.08%1.10%1.28%

Source: Ownwell

Property Tax Assessment Values Across San Gregorio, San Mateo County, California

When examining property taxes in San Gregorio, 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 San Mateo 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 San Mateo County, assessment notices are sent in the fall each year. They'll typically reach your mailbox by the middle of October.

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 San Gregorio.

For example, the median home price in San Gregorio is $888,694, with tax bills ranging significantly across the county. 94074 has the highest median home price at $888,694.

Property Tax Assessment Values Across San Gregorio, San Mateo County, California

Source: Ownwell

$462,344

$2,599,052

$4,735,760

Median San Gregorio Market Value

$888,694

Median San Mateo County Market Value

$810,000

Median California Market Value

$427,605

Median United States Market Value

$235,294

Property Tax Assessment Values Across San Gregorio, San Mateo County, California

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
94074$99,333$314,649$888,694$1,635,552$2,221,742

Source: Ownwell

Property Tax Bills Across San Gregorio, San Mateo County, California

Property tax bills in San Gregorio are based on the assessed value of a home and the local tax rate, so a higher market value can lead to a larger bill. With a median home price of $888,694, homeowners in San Mateo County often face bills that are well above the national median property tax bill of $2,400. The 25th percentile tax bill is $3,284, while the 75th percentile reaches $16,107, showing how much bills can vary from one home to another.

What affects the bill? The home’s assessed value, local taxing jurisdictions, and any exemptions or appeals that reduce taxable value. For homeowners, that can mean a significant yearly expense that impacts monthly housing costs and long-term affordability.

Ownwell helps homeowners lower property tax bills by reviewing assessments, identifying savings opportunities, and filing appeals when a home is over-assessed. If your bill is higher than it should be, Ownwell can help you pursue a fairer assessment and potentially save money year after year.

Property Tax Bills Across San Gregorio, San Mateo County, California

Source: Ownwell

$4,835

$26,810

$48,785

Median San Gregorio Tax Bill

$8,045

Median San Mateo County Tax Bill

$9,758

Median California Tax Bill

$5,134

Median United States Tax Bill

$2,400

Property Tax Bills Across San Gregorio, San Mateo County, California

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
94074$984$3,284$8,045$16,107$22,568

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in San Gregorio, California

How are property taxes calculated in San Gregorio, California?
Property taxes in San Gregorio, California are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.
How do I appeal my property taxes in San Gregorio, California?
To appeal your property taxes in San Gregorio, California, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.
What property tax exemptions are available in San Gregorio, California?
Common property tax exemptions in San Gregorio, California include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.
When are property taxes due in San Gregorio, California?
Property tax deadlines in San Gregorio, California vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.
How can Ownwell help reduce my property taxes in San Gregorio, California?
Ownwell provides professional property tax appeal services in San Gregorio, California. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.