Contra Costa County Treasurer -Tax Collector

Russell Watts

Russell V. Watts

Treasurer-Tax Collector

Belinda Zhu
Assistant Treasurer

Lulis Lopez
Assistant Tax Collector

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Court House with Jail


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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-in Hours

Monday through Friday
8 a.m. to 5 p.m.

Call Center Hours

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

ADA Coordinator

          (925) 608-9588


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  1. FY2022-2023 Property Tax Postponement Deadline Extended to Apr 14, 2023

    Need assistance with your residential property taxes? The State Controller’s Property Tax Postponement Program may be able to help. To learn more, visit or call (800) 952-5661. Read more...
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