Cumulative Cases


Cambridge residents who have tested positive for COVID-19

*as of 4:00 PM on January 26

Total Deaths


Confirmed COVID‑19 deaths in Cambridge residents

*as of 4:00 PM on January 26

Fully Vaccinated


Percentage of fully vaccinated Cambridge residents

*as of 5:15 PM on January 20

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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.
  • Wear a mask when indoors outside your home. Learn more.
  • 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

Face masks or coverings are required in indoor public places in Cambridge.

This Order applies to everyone over the age of two years old, with exceptions in alignment with the Centers for Disease Control and Prevention and the Massachusetts Department of Public Health guidelines.

For the purposes of this order, Indoor Public Places include, but are not limited to:

  • Common areas of residential buildings with at least four units such as any lobby, hallway, elevator, stairwell, laundry room, garage, etc.
  • Common areas in indoor office and laboratory buildings such as any lobby, hallway, elevator, stairwell, garage, etc.
  • Retail establishments
  • Restaurants & bars - except while actively eating or drinking
  • Performance venues
  • Social clubs
  • Houses of worship
  • Event spaces
  • Municipal buildings
  • Personal care establishments
  • Fitness establishments

Learn More


The City of Cambridge offers free COVID-19 testing 7 days a week for people who live or work in Cambridge. Walk-in testing is offered 4 days per week and appointment-only testing is offered 7 days a week through a partnership with CIC Health at their 295 Third St. location in Cambridge.

Learn More

Vaccine Information

People age 5 and older who live, work, or study in Massachusetts can get vaccinated. The COVID-19 vaccineisfree and one of the best ways to protect yourself and those around you from getting sick from COVID-19. We encourage everyone to get vaccinated. 


COVID-19 boosters are now available to anyone ages 12 and older. You’re eligible for a booster if:

  • Pfizer: It's been at least 5 months since your second dose and you're age 12 or older.
  • Moderna: It’s been at least 5 months since your second dose and you're age 18 or older.
  • Johnson & Johnson: It’s been at least 2 months since your first dose and you're 18 or older.

Those 18 and older can mix and match vaccines. You do not need to get the same vaccine brand for your booster as your original COVID-19 vaccination.


Pfizer COVID-19 boosters are now available to anyone ages 12 and older who are at least 5 months post their initial Pfizer vaccination series. At this time, only the Pfizer COVID-19 vaccine is authorized and recommended for adolescents age 12 and older.

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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

The City welcomes residents back in administrative buildings without appointments.

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.

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Contact Us

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Service Requests

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