Contra Costa County Public Records
| About Contra Costa County | |
| Land Area: | 719.95 Square Miles |
| County Located in: | California |
| Population Estimate: | 1041274 People |
| Number of Households: | 344129 |
| Number of Businesses: | 82564 |
| Median Household Income: | $78469 |
| Per Capita Income: | $55580 |
| Unemployment Rate: | 6.2 |
| Annual Number of Births: | 13570 |
| Annual Number of Deaths: | 6892 |
| Annual New Home Starts: | 2043 |
Contra Costa County Records Offices
Assessor
2530 Arnold Dr Ste 400
Martinez, CA 94553
925-313-7501
Elections Department
555 Escobar St.
Martinez, CA 94553
925-335-7900
Jail
1000 Ward St,
Martinez, CA 94553
925-646-4496
Public Works
255 Glacier Drive
Martinez, CA 94553
925-313-2000
Contra Costa Elections Division
524 Main St
Martinez, CA 94553
925-646-4166
Contra Costa Treasurer -Tax Collector
625 Court St. Finance Building Rm. 100
Martinez, CA 94553
925-957-5280
County Seat of Contra Costa
525 Henrietta Street
Martinez, CA 94553
925-372-3500
Martinez Area Chamber of Commerce
603 Marina Vista
Martinez, CA 94553
925-228-2345
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