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  1. Annual Asian American, Native Hawaiian, and Pacific Islander Celebration

    3rd AANHPI Celebration

    The celebration will take place at 11 a.m., on Tuesday, May 13, at the Board Chambers, 1025 Escobar St., in Martinez.

  2. Community Warning System

    Register for CWS Alerts

    The Community Warning System (CWS) is Contra Costa County’s all-hazard public warning notification system. CWS alerts you when a potential life- or health-threatening hazard requires immediate action.

Board & Committee Agendas
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County information

  1. News & Updates

    We want to ensure you have all the news & announcements

  1. CCSealColor_1 png file

    Contra Costa County Responds to Recent Executive Orders

    PostedonJanuary 24, 2025

    Amid recent changes and concerns about federal immigration policies, Contra Costa County wants to re...Read more...
  2. Measure X Innovation Fund logo

    Contra Costa County Innovation Fund

    PostedonApril 15, 2025

    Thank you, Contra Costa County, for fueling positive change through the Innovation Fund and your con...Read more...
  3. 2025-AANHPI-artwork_450X450_rough-01

    3rd Annual AANHPI Celebration

    PostedonApril 17, 2025

    The Contra Costa County Board of Supervisors will honor the 3rd Annual Asian American, Native Hawaii...Read more...
  4. Government Speak Podcast Logo

    Government Speak: A Contra Costa County Podcast

    PostedonApril 9, 2025

    Contra Costa County’s Office of Communications & Media is excited to share the latest episode of...Read more...
  5. Earth Day

    Earth Day Events in Contra Costa County

    PostedonApril 4, 2025

    Earth Day is a reminder of our shared responsibility to protect the environment through a day of act...Read more...
  6. Contra Costa County Focus newsletter cover with highway and Mount Diablo

    Contra Costa FOCUS Newsletter

    PostedonMarch 12, 2024

    Contra Costa County is marking 175 years of progress! Since 1850, we've transformed from a small agr...Read more...
  7. Ready Contra Costa

    Ready Contra Costa/ Listos Contra Costa

    PostedonSeptember 5, 2023

    Preparing before, during, and after extreme weather conditions is essential. Make a family communica...Read more...
  8. Inside Public Works Episode 5

    Watch Episode 5 of "Inside Public Works"

    PostedonFebruary 6, 2025

    The Contra Costa County Public Works Department is excited to announce the premiere of the fifth epi...Read more...
  9. EBT card-450x450

    New EBT Card Security & Technology Upgrade

    PostedonFebruary 24, 2025

    For added security and ease of use, your EBT card is receiving an upgrade and here is a list of FAQs...Read more
  10. Board Reorganization Meeting 2025

    New Leadership and Historic Milestones for Board of Supervisors

    PostedonJanuary 14, 2025

    The Contra Costa County Board of Supervisors convened its annual reorganization meeting Tuesday at t...Read more...
  11. Contra Costa County Seal

    Contra Costa County Secures Federal Funding to Advance Clean Energy Initiatives

    PostedonDecember 2, 2024

    Contra Costa County was awarded $356,510 in federal funding through the U.S. Department of Energy’s ...View Media Release (PDF)
  12. County Administration Building B

    County's New Administration Building Wins Prestigious Certifications and Green Building Award

    PostedonDecember 13, 2024

    Contra Costa County’s new Administration Building in Martinez has achieved historic recognition as t...View Media Release (PDF)
  13. Contra Costa Health logo

    County Launches Expanded Basic Health Care Coverage for Residents who are Uninsured and Undocumented

    PostedonSeptember 6, 2024

    Contra Costa Health is now offering affordable health care coverage to uninsured county residents wh...Read more...
  14. Sustainability

    Sustainability Resources & Residential Incentives

    PostedonMay 23, 2024

    Contra Costa County residents and business owners can take advantage of local, state, and federal in...Read more...
  15. Contra Costa County Seal

    Voter-Approved Measure X

    PostedonFebruary 24, 2022

    Measure X is a countywide 20-year, ½ cent sales tax approved by Contra Costa County voters on Novemb...Read more...
  16. Contra Costa Resilient Shoreline Plan

    County Receives Nearly $1.5 million for Contra Costa Resilient Shoreline Plan

    PostedonJune 7, 2024

    Contra Costa County has received nearly $1.5 million from California Ocean Protection Council’s Sena...View Media Release (PDF)
  17. Envision Contra Costa 2040 450x450

    Envision Contra Costa 2040

    PostedonMarch 20, 2024

    Draft Contra Costa County 2045 General Plan and Draft Climate Action Plan (CAP) 2024 Update are Read...Read more...
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Contra Costa

  1. Event Calendar

    Mark your calendar, we have an event for everyone

View all calendar events

  1. Apr28

  2. Board of Supervisors Meeting

    Board of Supervisors MeetingRead On
  1. May5

  2. Zoning Administrator Meetings

    Zoning Administrator MeetingsRead On
  1. May13

  2. Board of Supervisors Meeting

    Board of Supervisors MeetingRead On
  1. May14

  2. County Planning Commission Meeting

    County Planning Commission MeetingRead On

  3. El Sobrante Municipal Advisory Council (ESMAC) regular meeting

    El Sobrante Municipal Advisory Council (ESMAC) regular meetingRead On
  1. May20

  2. Board of Supervisors Meeting

    Board of Supervisors MeetingRead On
/Calendar.aspx

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  1. Contra Costa County CA Homepage

  1. 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 otherCounty departments and offices, see their web pages.

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