Contra Costa County Treasurer -Tax Collector

Russell Watts

Russell V. Watts

Treasurer-Tax Collector

Belinda Zhu
Assistant Treasurer

Lulis Lopez
Assistant Tax Collector

Click here to contact us

or email us at taxinfo@tax.cccounty.us

Group Photo in Front of Court House

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Finance Building

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

Mailing Address

P.O. Box 631
Martinez, CA 94553

Walk-ins Hours

Monday through Friday
8 a.m. to 5 p.m.
Face Covering Required

Call Center Hours

(925) 608-9500
Monday through Friday
9 a.m. to 4 p.m.

Alerts

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  1. New Mailing Address for Mail-in Property Tax Payments

    Due to consolidation of payment processing services, the coupon mailing address has changed. The 2021-2022 tax bills will be printed with a new mailing address: P.O. Box 51104, Los Angeles, CA 90051. Read more...
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