Local, state, and federal incentive programs and rebates for investments in clean energy, clean transportation, water efficiency, and more are available. To learn more, visit https://www.contracosta.ca.gov/9750
Hay disponibles programas de incentivos locales, estatales y federales y reembolsos para inversiones en energía limpia, transporte limpio, eficiencia del agua y más. Para obtener más información, visite https://www.contracosta.ca.gov/9750
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Contra Costa County Communities
(19 Cities and 36 unincorporated communities)
Population as of the 2020 Census
Households as of 2021
American Community Survey
Contact Us: Public Information Contacts Media Inquiries Contact Webmaster
County Administration Building:
1025 Escobar Street, Martinez, CA 94553
1st Floor: Clerk of the Board
2nd Floor: Human Resources
3rd Floor: County Counsel
4th Floor: County Administration
For all other County departments and offices, see their web pages.