Cumulative Cases


Cambridge residents who have tested positive for COVID-19

*as of 4:00 PM on May 18

Total Deaths


Confirmed COVID‑19 deaths in Cambridge residents

*as of 4:00 PM on May 18

Fully Vaccinated


Percentage of fully vaccinated Cambridge residents

*as of 5:15 PM on May 12

Subscribe to Daily Updates

Illustration of three people standing shoulder-to-shoulder wearing masks and bandaids

Widespread vaccination is the most important pathway to ending the COVID-19 pandemic.

  • Get vaccinated (age 5+) even if you have already had COVID-19. The vaccine is the best way to prevent severe or even life-threatening symptoms of COVID-19. Learn more.
  • Get a booster dose, if eligible. There are now booster recommendations for all three available COVID-19 vaccines in the United States. Eligible individuals may choose which vaccine they receive as a booster dose. Learn more.
  • Residents are encouraged to follow the Massachusetts Department of Public Health and CDC mask recommendations for vaccinated and unvaccinated people. Learn more here and here.
  • Get tested if you have been exposed or have symptoms associated with COVID-19, even if symptoms are mild. “Exposure” is considered having contact within 6 feet of an infected individual for a total of 15 minutes or more. Learn more.
  • Stay home from work if you are having symptoms associated with COVID-19 and get tested.
View Public Health Website

More Information

Face Coverings

Effective Monday, March 14, 2022, the City of Cambridge is following the Massachusetts Department of Public Health’s mask advisory for vaccinated and unvaccinated residents consistent with the Centers for Disease Control and Prevention’s mask guidance and will not require the use of face masks in indoor public places in Cambridge.

Residents are encouraged to follow the Massachusetts Department of Public Health and CDC recommendations for vaccinated and unvaccinated people, and businesses are reminded that they may continue to require the use of face masks inside their establishments if they wish.

Consistent with the City’s phased approach to reopening City buildings and programs, masks will continue to be required for all employees and visitors in municipal buildings, regardless of vaccination status, through Sunday, March 27, 2022.

Learn More


The City of Cambridge offers free COVID-19 PCR testing 7 days a week for people who live or work in Cambridge via walk-in and appointment-only testing sites.

Learn More

Vaccine Information

Everyone ages 5 and older is eligible to get vaccinated & boosted against COVID-19.  Certain immunocompromised individuals and people over the age of 50 who received an initial booster dose at least 4 months ago are eligible for another mRNA booster to increase their protection against severe disease from COVID-19.

View More

When an Employee Tests Positive for COVID-19

Information for employers when an employee tests positive for COVID-19 via a PCR or at-home test is provided by the Cambridge Public Health Department:

Isolation & Quarantine Guidance

The Cambridge Public Health Department has adopted the Massachusetts Department of Public Health’s updated COVID-19 isolation and quarantine guidance, with some additional recommendations. The CPHD recommendations are as follows:

  • If you test positive, you must isolate for at least 5 days (until symptoms are resolving) and wear a mask for 10 days. CPHD strongly recommends taking a rapid antigen test (home test) and receiving a negative result before ending home isolation after Day 5.
  • If you are exposed, CPHD strongly recommends taking a PCR or antigen test on Day 5, regardless of vaccination or booster status. If you test positive, you should stay home and follow MDPH isolation guidance.
  • If you test positive or are exposed, you must wear a mask throughout the 10-day isolation or quarantine period. CPHD strongly recommends wearing a well-fitting, high quality mask, such as a KF94, KN95, or N95 mask. CPHD discourages the use of cloth masks because they do not provide adequate protection.

Access Isolation and Quarantine Guidance from CPHD here.

City Departments & Offices

Walk-in access by the public is available Monday through Friday during regular City business hours (Monday, 8:30am-8pm, Tuesday-Thursday, 8:30am-5pm, and Friday, 8:30am-12pm), and in-person public appointments continue to be offered by many departments.

All Cambridge Public Library locations have reopened to the public. View Library hours.

View More

Contact Us

How can we help?

Please provide as much detail below as possible so City staff can respond to your inquiry:

As a governmental entity, the Massachusetts Public Records Law applies to records made or received by the City. Any information received through use of this site is subject to the same provisions as information provided on paper.

Read our complete privacy statement

Service Requests

Enter a service request via Commonwealth Connect for things like missed trash pickups, potholes, etc., click here