Library in Contra Costa County, CA

Find The Office You Need

• Contra Costa Campus Library

  4700 Ygnacio Valley Road, Concord, CA 94521

  925-602-6725
• Concord Library

  2900 Salvio Street, Concord, CA 94519

  925-646-5455
• Antioch Library

  501 West 18th Street, Antioch, CA 94509

  925-757-9224
• Clayton Library

  6125 Clayton Road, Clayton, CA 94517

  925-673-0659
• Crockett Library - Contra Costa County Library

  991 Loring Avenue, Crockett, CA 94525

  510-787-2345
• El Sobrante Library

  4191 Appian Way, El Sobrante, CA 94803

  510-374-3991
• Hercules Public Library

  109 Civic Drive, Hercules, CA 94547

  510-245-2420
• Lafayette Library - Contra Costa County Library

  3491 Mount Diablo Boulevard, Lafayette, CA 94549

  925-385-2280
• Contra Costa County Public Law Library

  1020 Ward Street, Martinez, CA 94553

  925-646-2783
• Pleasant Hill Library - Contra Costa County Library

  1750 Oak Park Boulevard, Pleasant Hill, CA 94523

  925-646-6434