Cambridge Alert Network

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Sign up to Be in the Know & Share Info

Receive Alerts


This service will be used to alert residents via phone calls, emails, and text messages in the event of emergencies within the city, such as:

  • Snow emergencies
  • Evacuations
  • Large scale water outages or other significant service disruptions
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Citizen Observer

This service will be used by police to send neighborhood specific crime alerts via emails and text messages, such as:

  • Emerging crime patterns identified in BridgeStat
  • Announcements about neighborhood meetings
  • Crime prevention tips
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Cambridge E-Line

This service will continue to send emails and text messages with general information and communications from the city, such as:

  • Street cleaning reminders
  • Trash/recycling pickup
  • City news and departmental information
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The Cambridge Police has joined the private social network for neighborhoods to provide important news, services, programs, free events, and emergency notifications to Nextdoor users residing within the city. In turn, residents will be able to engage with each of the police department’s posts with questions and comments, as well as send private messages to the department.

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Share Information

Commonwealth Connect

Commonwealth Connect is your direct connection for commonly requested City services. By using Commonwealth Connect, your request is automatically assigned to the responsible department, and you are given a tracking number and contact information in order to be able to follow up on your request if needed. Reporting an issue takes only a minute and helps make our city a better place to live, work and visit!

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RapidSOS Haven is a mobile safety and security app that puts the power of a home security system right in your pocket. With the RapidSOS Haven app, you can transmit data directly to 9-1-1, including your type of emergency, GPS location, and relevant medical and demographic data. You can even text 9-1-1 if you can’t speak. Haven also keeps you connected to your loved ones by informing them if you have an emergency and also makes it possible to see where your loved ones are in real-time through the Family Connect built-in feature.

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Sign up today.

The City of Cambridge makes every effort to ensure that information entered in these alerting systems is secure, confidential, and will only be used for the alerting purposes for which it is explicitly intended. Please read the security and privacy policies for the services offered, via the "Want more info?" links above, but realize that any voluntary sharing of personal information online carries some risk, however small.

Visiting City Hall

Cambridge City Hall

795 Massachusetts Ave
Cambridge MA, 02139
Ph: 617-349-4000
TTY: 617-349-4242

Hours of Service

Monday: 8:30am-8pm
Tuesday-Thursday: 8:30am-5pm
Friday: 8:30am-12pm

Louis DePasquale
City Manager

Lisa C. Peterson
Deputy City Manager