Contra Costa County Treasurer -Tax Collector

Russell Watts

Russell V. Watts

Treasurer-Tax Collector

Finance Building

625 Court St., Ste 100
Martinez CA 94553
Driving Directions

OFFICE OPEN TO PUBLIC BY APPOINTMENT ONLY

For the health and safety of the public from COVID-19, visitors will need to request an appointment by calling (925) 957-5280 or emailing taxinfo@tax.cccounty.us. 

A drop box is available for property tax payments weekdays (except holidays) 8:00 AM to 4:30 PM at the Main Street entrance door.

Mailing Address

P.O. Box 631
Martinez, CA 94553

Walk-in Hours

Monday through Friday
By Appointment Only

Call Center Hours

(925) 957-5280
Monday through Friday
9:00 AM - 4:00 PM

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  1. 2021 Notice of Proposed Disposition of Unclaimed Money

    Contra Costa County Treasury 2021 Notice of Proposed Disposition of Unclaimed Money Read more...
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