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COVID-19 Status Update for 12/07/2021

Marin County COVID-19 Status Update for December 7, 2021 includes COVID-19 Recap to Marin County Board of Supervisors; Testing… Read More

COVID-19 Status Update for 04/27/2021

Marin County COVID-19 Status Update for April 27 includes a video update from Dr. Willis; a Blueprint update from the state; new mask wearing guidance for fully vaccinated individuals; and updated local COVID-19 data.

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The Marin County COVID-19 Status Update is published weekdays and as needed to share important news and resources related to the COVID-19 pandemic and to keep the local economy running. We remain here for you.



Video: COVID-19 Update to the Board of Supervisors 

Earlier today, Public Health Officer Dr. Matt Willis provided a COVID-19 response update to the Marin County Board of Supervisors. In his talk, he reviewed current COVID-19 data, Marin’s progress to toward the yellow Tier 4 in the Blueprint for a Safer Economy, vaccination progress, Marin’s shifting vaccination strategy, new locations to obtain vaccination, our COVID-19 toolkit, and what can still go wrong.




New Guidelines for Outdoor Mask Use Among Fully Vaccinated People

Today, the U.S. Centers for Disease Control and Prevention (CDC) released updated outdoor mask and face covering guidance for fully vaccinated individuals, signaling that COVID-19 vaccines are effective at reducing the risk of catching the virus or experiencing severe symptoms.

“Fully vaccinated” means at least two weeks have passed since a person has completed their vaccine series (e.g, receiving the second shot of a Pfizer or Moderna vaccine, or one dose of Johnson & Johnson). The new guidelines allow fully vaccinated people the freedom to be without masks outdoors unless they are in a crowded environment, such as a sporting event or parade. Mask-free activities include exercising outside, dining outside, or gathering with small groups outdoors.

People who are unvaccinated or partially vaccinated must continue to wear masks outdoors when around other unvaccinated people, dining outdoors and at crowded events. All people – vaccinated or not – must continue to wear masks indoors when around other people they do not live with, regardless of the activity. Comparison of indoor versus outdoor activities (PDF).

Both Governor Gavin Newsom and State Public Health Officer, Dr. Tomás Aragón, have approved of the CDC’s recommendations and the California Department of Public Health (CDPH) is planning to align the state’s mask mandate with the new federal guidelines. Marin County Public Health will align with CDPH’s new guidance.



Blueprint Update: Marin Inches Closer to Yellow Tier

Today, California Department of Public Health (CDPH) provided another update on the Blueprint for a Safer Economy, a statewide plan for reducing COVID-19 and keeping Californians healthy and safe.

Marin achieved the first of two required weeks -worth of Tier 4 data. For a County to advance to a less restrictive tier, it must (1) have been in the current tier for a minimum of three weeks; and (2) meet criteria for the next less restrictive tier for all measures for the prior two consecutive weeks. If Marin maintains its current progress, it will be able to move into Tier 4 as early as May 4.

The following table outlines the requirements for case rates, test positivity rates, and quartile test positivity rates for each tier status, as well as CDPH’s April 27 assessment for Marin:


  Tier 1
Tier 2
Tier 3
Tier 4
Marin County
Adjusted Case Rate per 100,000 > 10 6 to 10 2 to 5.9 < 2 1.5
Overall Test Positivity Rate > 8% 5% to 8% 2% to 4.9% < 2% 0.5%
Equity Quartile Test Positivity Rate > 8.0% 8.0% ≤ 5.2% 2.1% 0.6%

(Table updated to reflect CDPH's 4 Million Vaccine Equity Metric Goal adjustment of April 6)

You can track Marin’s progress online. Data is updated each Tuesday afternoon to reflect CDPH’s calculations.



COVID-19 Data Update:

Below is a summary of today’s data now available on Marin Data & Surveillance webpage. View the page for a broader range of data, plus interactive graphs for confirmed COVID-19 cases, hospitalizations and deaths. Data analysis is available by age range, gender, race, and city/town/geographic region. Questions about the data? See our Data FAQ or contact us.

Looking for daily data trends? Our Marin Data & Surveillance webpage  uses Tableau dashboards to visualize the impact of COVID-19 in Marin County. Under each dashboard are links to datasets available on Marin County's Open Data Portal.

COVID-19 Case Data

Today’s Report

Change from Yesterday

Total Confirmed Cumulative Cases


+ 13

“Active Cases” (Confirmed in Past 14 Days)


- 4

Total Cumulative Deaths



Cumulative COVID-19 Hospitalizations


+ 2

Current COVID-19 Hospitalizations


+ 1

Current COVID-19 ICU Patient Census


+ 1

Tests Conducted Among Marin Residents


+ 0*

*At the time of publication, today’s testing count was not available due to an issue with CalREDIE, the state’s COVID-19 testing database. We anticipate the data being available for tomorrow’s report

COVID-19 Vaccination Data

Today’s Report

Change from Last Status Update

Marin residents vaccinated with at least one dose


+ 682

Percent of Marin population age 16+ who have received at least one dose


+ 0.3%


Residential Care & Skilled Nursing Facility COVID-19 data:

Today’s Report

Change from Yesterday

Positive Patients at Facilities cumulative


+ 1

Positive Patients at Facilities current


+ 1

Positive Staff at Facilities current



Facility Patient Deaths


+ 0

Facility Patient Deaths as percentage of all COVID+ deaths


+ 0%


State COVID-19 data:

Today’s Report

Change from Yesterday

California Confirmed Cases


+ 1,445

California Deaths


+ 5

Other Marin County Data Dashboards:

Vaccination Data

School -based COVID-19 Transmission Data

Blueprint for a Safer Economy (“tier status”) Data



DATA CORRECTION: April 26 Status Update Data

The April 26 Status Update sent to email and text message subscribers contained incorrect data in the “COVID-19 Case Data” and “COVID-19 Vaccination Data” charts. All other charts were correct. The incorrect charts have been updated in our online archive of our status updates. View the updated April 26 Status Update online.



Stay Informed

Follow the County of Marin on Facebook, Twitter, Nextdoor or subscribe to our status updates. Visit for resources to stay connected on the issue.

Helpful Links and Online Resources:


Contact Us. We Are Here for You.

Have questions?  We are here to help: contact our COVID-19 Response Team or by phone at (415) 473-7191, Monday through Friday, 10AM to 5PM.

Alternatively, you can contact the statewide COVID-19 Hotline 7 days per week by dialing (833) 422-4255 for general information about state COVID-19 resources.  If you’re looking for medicine, medical attention or have a medical related question, please contact your primary care provider or local health clinic. As a reminder, please only call 9-1-1 if you are experiencing a life-threatening emergency.


Spread the word

How your friends and family can receive these updates:

  • Text "MARIN COVID" to 468311 to receive text message notifications      
  • Subscribe online to receive email notifications
  • Tweet & share this update with your friends on Twitter!