Update on County Offices and Services
Please note that because of the Public Health Order, our ability to respond may be limited and delayed. Please be patient. We will do the very best we can to provide service to you.
See the list below for office updates and any service changes for County Departments. For the latest information, please check with the specific department or program.
Agriculture / Weights & Measures:
Agriculture/ Weights & Measures is open for County business, but public access is by appointment only.
View Agriculture/Weights & Measures for the latest updates.
Buchanan Field and Byron Airport remain open for essential operations. Airport administration offices are open but closed to the public. Administration offices hours will be Monday – Friday, 9 am to 4 pm.
Phone: 925 681-4200
Airport Operations Staff will be on duty 7 days a week from 7 am to 11 pm.
Visit Contra Costa County Airports for the latest updates.
The Assessor’s Office is open for County business Monday through Friday from 8:00 am – 4:00 pm. The Assessor’s Office lobbies are closed to the public. Public Services are available online at www.contracosta.ca.gov/Assessor, by phone - Tuesday through Thursday, 8:00 am – 3:00 pm, and through the mail.
Visit Assessor’s Office for the latest updates.
The Auditor-Controller’s Office is open for County business with reduced hours but closed to the public.
Visit Auditor-Controller for the latest updates.
Child Support Services:
Please note that our ability to respond may be limited and delayed. Please be patient. We will do the very best we can to provide service to you. Customers can continue to use one of these options to contact us:
Customer Connect: http://www.childsup-connect.ca.gov/
Visit Child Support Services for the latest updates.
Clerk of the Board of Supervisors:
The Clerk of the Board is open Monday - Friday, from 8 am to 5 pm.
Email: During non-public hours, please email email@example.com and a member of our staff will contact you as soon as possible.
Visit Clerk of the Board of Supervisors for the latest updates.
The Clerk-Recorder-Elections Department remains open to provide essential services, but access to buildings and in-person services is limited. Public access is limited to the Elections Division by appointment only. Elections hours will remain open Monday - Friday from 8 am - 5 pm. Clerk-Recorder Division hours will be open Monday - Friday from 8 am - 4:30 pm.
Visit Clerk-Recorder/Elections Division for the latest updates.
Conservation and Development (DCD):
We continue to operate nearly all of our services and programs while working remotely and supporting the County’s emergency response efforts. Beginning May 4, 2020, we resumed accepting all types of building and planning applications, issuing all types of permits and conducting inspections on all types of construction. These applications are virtual, as our permit centers are not open to the public.
Phone: Permit Center 925-674-7200 or General Information 925-674-7774.
Visit the Department of Conservation and Development for the latest updates.
Contra Costa Health Services (CCHS):
Contra Costa County Health Services Department and its Health, Housing & Homeless Services (H3) remain operational.
Visit cchealth.org/coronavirus for the latest updates. For other Health Services, visit cchealth.org for service updates.
Health Call Center: 1-844-729-8410 open 8 am - 5 pm, seven days a week. Assistance is available in English and Spanish.
County Administration is open for County business but closed to the public.
Office of Reentry and Justice is open for County business but closed to the public.
Office of Communications & Media and Contra Costa Television are open for County business and to the public. Contact us at Email: CCTV@contracostatv.org or call (925) 313-1180 for assistance.
Risk Management Office is open for County business but closed to the public.
All District Attorney offices are closed to the public at this time. As of now, our phone lines remain open.
Visit District Attorney for the latest updates.
Employment & Human Services (EHSD):
Employment & Human Services has emergency protocols in place to ensure we deliver the services our customers need, as well as some expedited services for our most vulnerable community members.
Visit Employment & Human Services for the latest updates.
Human Resources offices are open with a combination of onsite and remote access, and staff are available Monday through Friday, from 8 am to 5 pm.
Visit Human Resources for the latest updates.
Beginning Monday, June 15, the Library will offer Front Door Service at 25 community libraries. The service will allow patrons to pick-up books, DVDs, and audiobooks placed on hold through the Library’s website at ccclib.org.
Phone: For questions about Library services or account information, contact the library via Chat Monday through Friday from 10 am to 5 pm or call 800-984-4636.
Visit ccclib.org for the latest updates.
Until further notice, Probation field offices in Antioch, Martinez, and Richmond will not be accessible beyond the public lobbies. Office appointments are not being scheduled at this time, however, Deputy Probation Officers have resumed field contacts with clients, and available via telephone.
The West County field services office in Richmond has relocated from 1275 A. Hall Avenue to 3095 Richmond Parkway Suite 210, effective Friday, April 10. The new telephone number for this location is 510-942-3400.
Personal visitation has been suspended until further notice at the County Juvenile Hall and the Boy’s Ranch. However, essential professional visits will continue with proper health screening beforehand. A health screening tool is being implemented for individuals who are booked into custody at either of these facilities.
Visit Probation for the latest updates.
The Office of the Public Defender in Martinez will remain open. All other offices will remain closed to the public. For a list of Public Defender FAQs, please click here.
Public Works offices are open, and staff are available Monday to Thursday, 7 am - 5 pm, and Friday 7 am – 4 pm, closed 12 pm - 1 pm on Fridays only.
Email: Public Works
Visit Public Works for the latest updates.
Sheriff’s Office information: cancellation of jail visits because of coronavirus. To prevent the spread of COVID-19 into the Contra Costa County detention facilities, the Office of the Sheriff has temporarily canceled all professional, official, and social visits at the Martinez, West County, and Marsh Creek Detention Facilities. However, attorney visits will continue with access to non-contact visit rooms only. The cancellation will be reassessed as conditions change.
Visit Sheriff’s Office for the latest updates.
Superior Court of California is not a County office. The Contra Costa Superior Court will reopen to the public on May 26, 2020. For specific guidelines and more information, visit Superior Court of California, Contra Costa County.
The Treasurer-Tax Collector Office is open for County business, but public access is limited. Beginning May 18, 2020, the office will allow public visits by appointment only. To communicate with the office, please email or contact our Call Center, available Monday through Friday 9 am - 4 pm. For information, visit www.cctax.us.
Visit Treasurer-Tax Collector for the latest updates.
Veterans Service Office:
Veterans Services is operating virtually through their website. Beginning June 15, Veteran Services is taking appointments only at the Martinez office.