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 

          TTY: Call 711


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  1. Main Street Side Entrance Closed December 12-17

    Due to ongoing construction of the new building and public plaza at 651 Pine Street, access to the Main Street entrance of the County Finance Building will be closed December 12th through 17th. The Court Street entrance will be open during business hours.
  2. Monthly Payment of Annual Property Tax Made Simple

    Are you having trouble paying your annual property taxes in two installments? Would it help you to pay them in monthly payments? Read more...

    Made pursuant to Section 3372, Revenue and Taxation Code The real properties listed below were declared to be in tax default at 12:01 a.m. on July 1, 2020, by operation of law pursuant to Revenue and Taxation Code 3436. The Declaration of Default was d... Read more...
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