San Mateo County CA Property Appraiser, Search Your Record Lookup
California State Property Appraiser Search, Access Your Record
California State has more than 12.1 Million parcels, You Can Search Property Record With Parcel number / AIN, ZIP Code, or with address. Example: 2004013020
California Property Search
| Zip Code | Parcel Number (APN) | Assessor ID | Roll Year | Tax Rate Area Code | Property Location | Property Use Type | Year Built | Square Footage | Number Of Bedrooms | Number Of Bathrooms | Number Of Units | Land Value | Improvement Value | Total Value | Total Exemption | Taxable Value | Parcel Legal Description | Street | City | AIN |
|---|
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In San Mateo County, property valuations are managed by the San Mateo County Assessor County, Clerk Recorder for the 2025 to 2026 cycle. The assessment roll has reached over $300+ Billion, reflecting continued growth driven by Silicon Valley’s strong real estate market and development activity. The county includes 234,553 assessable parcels, 285,412 matched addresses, and more than 215,000 mapped buildings. Additionally, there are 54,232 secondary address units, highlighting dense multi-family and ADU expansion. With 100% standardized zoning coverage across all 20 cities and unincorporated areas, San Mateo County property search remains highly reliable and essential for accurate parcel data, tax roll insights, and real estate analysis in 2026.
San Mateo County CA ZIP Codes
Find homes in popular San Mateo County CA ZIP codes or search by city, neighborhood, or region.
San Mateo County, California Property Overview 2026
San Mateo County’s property landscape features 195,078 residential and 10,466 commercial properties, with single family homes averaging 66 years old and 1,868 sq. ft. In 2026, 651 homes sold year to date, foreclosure filings reached 58, 0.62% homes are underwater, and the effective property tax rate is 0.65%, reflecting a stable and high value real estate market driven by strong demand and Silicon Valley growth.
Residential Properties
195,078
Commercial Properties
Avg. Home Age Single Family
Avg. Square Feet Single Family
Residential Sales 2026
Homes Seriously Underwater
Residential Sales past year
Rich Homes percentage
Effective 2026 Property Tax
Total Foreclosure Filings
58 Year to date
Top Cities in San Mateo County
San Mateo County features strong real estate demand across its most popular cities, including Daly City, San Mateo, Redwood City, South San Francisco, Foster City, and Half Moon Bay. Daly City offers transit access and affordability, while San Mateo provides a central location with a vibrant downtown. Redwood City serves as a business hub, and South San Francisco supports industrial growth. Foster City features planned waterfront communities, and Half Moon Bay delivers coastal appeal. These cities collectively enhance real estate value, rental demand, and long-term investment potential in the county.
Daly City
25,667 Parcels
San Mateo City
39,000 parcels
27,830 Parcels
San Mateo County CA Property Search Tool Has 4 Best Method
Our San Mateo County Property Search Tool allows you to quickly and easily access property records online for free. Search by owner name, parcel number (APN), property address, or city to instantly view ownership details, tax information, sales history, and comprehensive property data in just a few clicks.
Search By Owner Name
You Can Use Owner name For Property Search In San Mateo County California.
Search By Address
You Can Also search Property Info with address in San Mateo County California.
Search By Parcel PIN
Use Parcel Number For Exact Search In San Mateo County California.
Search By City Name
If You Dont't have any other Option, search With City Name, Use in Address
San Mateo County CA property Search Tool Provide Information
The San Mateo County Property Search Tool provides instant access to complete property information. Easily search by owner name, APN (Assessor’s Parcel Number), or property address to explore ownership details, tax records, assessed values, sales history, and official county data, everything you need for reliable, informed real estate decisions.
Zip Code
In San Mateo County, ZIP codes define property locations, supporting accurate mapping, demographic insights, and efficient real estate market analysis for targeted property searches.
APN
The APN is a unique identifier assigned by the San Mateo County Assessor County Clerk Recorder to track each parcel for property taxes, assessments, ownership records, and official property data.
Assessor ID
The Assessor ID is used by the San Mateo County Assessor-County Clerk Recorder to link properties with official records, ensuring accurate tracking, tax assessments, and ownership verification.
Roll Year
The Roll Year represents the fiscal assessment year used by the San Mateo County Assessor County Clerk Recorder, helping track property value changes and determine current tax obligations accurately.
Tax Rate Area Code
The Tax Rate Area Code identifies the local taxing jurisdiction within San Mateo County, determining applicable property tax rates based on city, school district, and special districts for accurate tax calculations.
Property Location
In San Mateo County, Property Location refers to the physical address or geographic position of a parcel, ensuring accurate identification for buyers, researchers, and county records.
Property Use Type
In San Mateo County, Property Use Type classifies a parcel as residential, commercial, or industrial, helping determine zoning regulations, taxation, and appropriate land use for accurate property evaluation.
Year Built
In San Mateo County, Year Built indicates when a property’s primary structure was constructed, playing a key role in valuation, insurance considerations, and overall real estate market assessment.
Square Footage
In San Mateo County, Square Footage represents the total livable area of a property, helping determine market value, compare listings, and support renovation planning and real estate analysis.
Number of Bedrooms
In San Mateo County, the Number of Bedrooms reflects the sleeping spaces in a residential property, assisting buyers, appraisers, and assessors in accurate valuation and real estate market analysis.
Number of Bathrooms
In San Mateo County, the Number of Bathrooms indicates the available bathing facilities in a property, supporting valuation, usability assessment, and comparative real estate market analysis.
Number of Units
In San Mateo County, the Number of Units identifies how many separate residential or commercial spaces exist within a property, influencing rental potential, property valuation, and taxation.
Land Value
In San Mateo County, Land Value represents the assessed worth of the land excluding structures, forming a key component in property tax calculations, valuation, and real estate investment analysis.
Improvement Value
In San Mateo County, Improvement Value measures the assessed worth of buildings and structures on a parcel, contributing to total property valuation, tax calculations, and overall real estate market assessment.
Total Value
In San Mateo County, Total Value represents the combined assessed worth of land and improvements, forming the basis for property tax calculations and supporting accurate investment and market evaluation.
Total Exemption
In San Mateo County, Total Exemption reflects deductions applied to a property’s taxable value, such as homeowner or senior exemptions, helping reduce overall property tax obligations and improve affordability analysis.
Taxable Value
In San Mateo County, Taxable Value represents the portion of a property’s assessed value that remains after exemptions, forming the basis for calculating county property taxes and overall tax liability.
Parcel Legal Description
In San Mateo County, the Parcel Legal Description defines official boundary details, including lot, block, and subdivision information, ensuring precise identification for legal records, surveys, and property transactions.
Street
In San Mateo County, the Street field specifies the property’s exact street location, supporting navigation, mail delivery, and accurate property searches for buyers, researchers, and county records.
City
In San Mateo County, the City indicates the municipality where a property is located, impacting local taxes, zoning regulations, and community governance within the county’s various jurisdictions.
San Mateo County Property Tax & Demographic Data (2026)
In San Mateo County, California, property tax for 2026 is not calculated using millage rates. Instead, it follows a percentage based system under Proposition 13, with a base rate of 1.0% of assessed value. Additional voter-approved bonds and fixed parcel taxes typically bring the effective tax rate to approximately 1.1%–1.3%. The following table includes all 20 incorporated cities and major unincorporated communities, showing estimated parcels, population, land area, effective tax rates, and median tax bills for property search and real estate analysis.
| City / Area | Total Parcels (Est.) | Total Population | Area (Sq Mi) | Effective Tax Rate | Median Tax Bill (Est.) |
|---|---|---|---|---|---|
| Atherton | 2,500 | 6,946 | 5.02 | 1.10% – 1.15% | $41,115 |
| Belmont | 9,800 | 28,206 | 4.63 | 1.24% | $11,500 |
| Brisbane | 1,850 | 4,680 | 3.10 | 1.13% | $9,200 |
| Burlingame | 10,200 | 31,552 | 4.41 | 1.11% | $12,800 |
| Colma | 600 | 1,480 | 1.91 | 1.30% | $7,500 |
| Daly City | 24,500 | 104,945 | 7.66 | 1.20% | $8,800 |
| East Palo Alto | 7,200 | 28,972 | 2.51 | 1.25% | $7,200 |
| Foster City | 11,500 | 32,117 | 3.76 | 1.15% | $11,400 |
| Half Moon Bay | 4,800 | 11,500 | 6.42 | 1.12% | $10,100 |
| Hillsborough | 3,900 | 11,100 | 6.23 | 1.10% | $28,500 |
| Menlo Park | 12,800 | 32,715 | 9.79 | 1.18% | $15,200 |
| Millbrae | 7,600 | 22,500 | 3.25 | 1.22% | $10,800 |
| Pacifica | 14,200 | 38,200 | 12.66 | 1.21% | $9,100 |
| Portola Valley | 1,750 | 4,400 | 9.09 | 1.10% | $18,900 |
| Redwood City | 22,100 | 83,875 | 19.42 | 1.20% | $12,329 |
| San Bruno | 13,800 | 43,500 | 5.48 | 1.20% | $9,600 |
| San Carlos | 11,600 | 30,500 | 5.54 | 1.22% | $13,400 |
| San Mateo | 27,500 | 102,343 | 12.13 | 1.15% | $13,705 |
| South San Francisco | 18,200 | 65,903 | 9.14 | 1.18% | $9,400 |
| Woodside | 2,100 | 5,200 | 11.73 | 1.10% | $24,970 |
| La Honda* | 800 | 1,500 | Unincorp. | 1.10% | $8,500 |
| Pescadero* | 450 | 650 | Unincorp. | 1.10% | $6,200 |
| San Francisco* | N/A | 808,000 | N/A | 1.18% | $11,200 |
FAQs
What is the San Mateo County Property Search tool used for?
It helps users find parcel details, ownership records, assessed values, tax information, and property characteristics across San Mateo County.
What is an APN and why is it important?
APN (Assessor’s Parcel Number) is a unique identifier assigned to each property, used to accurately locate and retrieve official county records.
Can I search property by address?
Yes, most property search tools allow searching by street address, APN, or Assessor ID for precise results.
How often is property data updated?
Property data is updated regularly by the county assessor’s office, typically aligned with annual assessment roll updates and recorded transactions.
Does the tool show tax and valuation details?
Yes, it provides assessed value, taxable value, exemptions, land and improvement values, and estimated property tax information for analysis.