Frequently Asked Questions

We hope these Frequently Asked Questions (FAQs) help you find the answer to your question. If you have additional questions, you can call our call center at (833) 829-2626, open Monday through Friday from 8 a.m. - 3:30 p.m.



Click on the category that you are interested in and a list of topics will appear. When you click on a topic, you’ll see a list of specific questions. Click on the question and the answer will appear.



California’s COVID-19 Safety Guidelines (updated 9/23/2022)

Contra Costa County follows the State of California’s COVID-19 guidance. The State requires masks for all people in some indoor settings and recommends masking based on CDC COVID-19 community levels. The State also has isolation and quarantine guidance, a travel advisory for all people coming into California and recommendations for mega-events.



COVID-19 Vaccination (updated 9/8/2022)

COVID-19 vaccines protect against severe illness, hospitalization and death by teaching our bodies how to fight the virus. A safe, effective, free COVID-19 vaccine is available to everyone ages 6 months and older. Everyone should stay up-to-date on vaccinations by getting booster shots when eligible.


Masking (updated 9/23/2022)

Contra Costa County follows the State of California’s masking guidance. Everyone should follow masking recommendations based on COVID-19 community levels. Everyone is required to wear masks in some settings, including healthcare settings. Click to view the State of California’s mask requirements and recommendations.


COVID-19 Testing (updated 8/29/2022)

Free COVID-19 tests are available at county sites,  State sites and other commercial and healthcare provider sites


If you have COVID-19 symptoms, get tested right away and stay home except for medical care.

If you test positive for COVID-19, treatment may be available. Contact your healthcare provider or call the Contra Costa County Health Advice Nurse at 877-661-6230 right away to talk about treatment, or visit a test to treat location. Don’t delay, even if your symptoms are mild right now – treatment must be started within the first few days to be effective.