Cambridge, MA non-emergency police number
Source: cambridgema.gov · checked October 25, 2026
Cambridge, MA had 118,403 residents at the 2020 Census and is served by the Cambridge Police Department, within Middlesex County. Use the number above for anything that is not an emergency; call 911 if anyone is in danger.
When to call 911 instead
Call 911 if any of this is true right now:
- Someone is injured, unconscious, or threatening to hurt somebody.
- A crime is in progress, or the suspect is still nearby.
- There is a fire, a gas smell, or a crash with injuries or blocked traffic.
- You are not sure. A dispatcher would rather triage one unnecessary 911 call than miss a real one.
Use the non-emergency number for things that have already finished and nobody is in danger:
- A theft, burglary, or vandalism discovered after the fact, including when you need a report number for insurance.
- A car blocking a driveway or hydrant, an abandoned vehicle, a parking complaint.
- Noise, a loud party, fireworks, or a barking dog.
- A minor collision with no injuries where the vehicles have been moved.
- Found property, a follow-up on an existing case, or a general question for Cambridge Police Department.
Non-emergency lines are usually answered by the same communications centre as 911, but at a lower priority — expect to hold, and expect to be asked whether anyone is in danger.
Cambridge law enforcement agency
Cambridge, MA 02139
County sheriff — Middlesex County
If the incident happened outside the city limits, or you need the county jail, civil process, or court security, the sheriff's office handles it.
Official services and forms
How to file a police report or get a report copy in Cambridge →
Towed or impounded car in Cambridge — what to do →
311 and 211
311 is for city services rather than policing — potholes, missed collections, street lights, parking, and in some cities non-emergency police reports. Where a city runs a 311 service, the page says so above.
211 is a free nationwide line for health and human services: housing, food, utility assistance, mental health, and crisis support. It is operated by local United Way and partner organisations and is available in most of the country by dialling 211 or through 211.org.
Questions about calling Cambridge police
What is the non-emergency police number for Cambridge, MA?
(617) 499-9924 — published by Cambridge Police Department and checked on October 25, 2026.
Can I call this number to report a crime that already happened in Cambridge?
Yes — that is what it is for. Have the address, the time, a description of what was taken or damaged, and any suspect or vehicle description ready. Ask for the case or report number before you hang up; insurers almost always want it.
Is the Cambridge non-emergency line answered 24 hours a day?
Most non-emergency lines ring into the same communications centre as 911 and are answered around the clock, but some ring a front desk that closes in the evening. If nobody answers and the matter is genuinely urgent, call 911.
What if the incident was outside Cambridge city limits?
Unincorporated parts of Middlesex County are covered by the sheriff's office. See the Middlesex County page.
Nearby in Middlesex County
- Lowell(978) 937-3200
- Newtonnon-emergency contacts
- Somervillenon-emergency contacts
- Framinghamnon-emergency contacts
- Maldennon-emergency contacts
- Walthamnon-emergency contacts
- Medfordnon-emergency contacts
- Everettnon-emergency contacts
Official sources used on this page
This page was last verified against its sources on October 25, 2026. Source URLs are re-requested on a rolling monthly cycle; see Methodology.