As a property owner of San Mateo County, you may have wondered how your tax dollars are distributed. The following chart provides some helpful tax distribution and service information. The chart illustrates the distribution of the 1% ad valorem tax (based on the assessed value).

Although schools continue to receive the largest portion of your tax dollars, changes in State laws have reduced their share. The County provides health, welfare, human services and criminal justice programs with its portion. Cities provide fire, police and other community services. Special Districts, such as Flood Control and Sequoia Healthcare District provide other services to the community for further information please visit the San Mateo County Controller website at or call (650) 363-4893.

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Tax Office Location

555 County Center - 1st Floor

Redwood City, CA 94063

Phone: (866) 220-0308

Fax: (650) 599-1511


Hours of Operation

Monday - Friday: 9 AM - 5 PM

Phone Hours are 9 AM - 5 PM (Monday - Friday)

Excluding all Holidays.

Make Tax Checks Payable to:

Sandie Arnott, San Mateo County Tax Collector

Mail Tax Payments to:

San Mateo County Tax Collector

PO Box 45878

San Francisco, CA 94145-0878