Government Information

Federal Depository Library Program

The Costa County Library was designated as a Federal Depository Library for the 10th Congressional District in 1964. As a selective depository established through the Federal Depository Library Program, the Library's mission is to make government publications freely available for the use of the general public and to meet the government information needs of the people who live and work in Contra Costa County. The Library emphasizes the online electronic format to maximize both accessibility to government publications by county libraries and cost effectiveness in library collection development.

Search the Contra Costa County Library catalog for Federal Depository holdings.

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As the U.S. government's official web portal, is your online guide to government information and services.

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Discover U.S. Government information for all at, opens a new window. Free online access to official publications from all three branches of the Federal Government.

California State Depository Library Program

The California Library Distribution Act  established the depository library program to make California state documents readily available to the citizens of the state. The California State Library is responsible for carrying out the provisions of the Act by developing and maintaining standards for depository libraries, granting depository status to libraries, and administering the depository program.

Across the state, 103 libraries participate in the program, opens a new window and receive publications produced by California state agencies. Contra Costa County Library is a selective depository for state documents distributed by the Office of State Publishing.

Search the Library catalog for California State Depository holdings. homepage, opens a new window

The official homepage of the State of California.


Who are my representatives? Find your State Senate, State Assembly or United States Congressional Representatives, as well as information on how you can contact them, here, opens a new window.


Social Services

Need help with health care, clothing, food or utilities? Get information 24 hours a day, seven days a week, by calling the three digit, toll-free number 211 from any phone or search online, opens a new window

Learn more about the County's Homeless Services, opens a new window

View Contra Costa Health Services' community resources directory here, opens a new window

Apply for Energy Assistance (LIHEAP) here, opens a new window


Tax Assistance

Free Tax Help in Contra Costa County Tax centers from a variety of community agencies, including AARP Centers.  (A community project of United Way of the Bay Area.)

Citizenship Resources

LearningExpress Library Citizenship Exam Help

Includes practice tests and eBooks to help prepare for your citizenship exam.

Study Resources for Citizenship Exam

Prepare for your citizenship exam with these library resources.

Immigration Services

California Department of Social Services funds programs at community based organizations that help immigrants who live in California.
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