Lost something in Cambridge? Here is who to contact.
File a single report and we connect it to Cambridge Police, MIT Police, the MBTA, local social channels, and airport services. Then our system monitors the web continuously for matches while you go about your day.
What did you lose?
If there isn’t an adequate suggestion, select “Other – My item isn’t listed” and enter the item’s category. You can provide details later.
Publishing your report is free and your details stay private. The assisted search is a separate paid service, described in the Terms.
Recent activity
Across the United States
- Wrislet clutch gray/silver bag with documents · Chicago, IL, October 8
- Ring TM on top · Greensboro, NC, October 8
- Keys · Sarasota, FL, October 8
- Keys · Brookline, MA, October 7
- Camera · Monterey, CA, October 7
Local contact details reviewed on October 7, 2026.
How ReportLost Works
You describe your loss
Tell us what you lost, where, and when. We capture the details that matter: color, brand, distinguishing marks, exact location in Cambridge.
We route it to the right places
Your report flows to Cambridge Police Property & Evidence Unit, MIT Police (if applicable), MBTA Lost & Found, Logan Airport, and active local community channels. No back-and-forth calls from you.
Automated monitoring finds matches for you
Our system scans Facebook groups, Reddit, community marketplaces, and public web listings continuously for months. The moment a credible match appears, you get an alert. You don't have to refresh pages or post daily.
Where to Report in Cambridge
The official lost and found channels in Cambridge and what ReportLost does for you
Cambridge Police Property & Evidence Unit
The main repository for items found and turned in across the city. Call or visit in person during business hours. We identify the correct police contact and pre-fill the information you need to provide.
MIT Police Lost and Found
If you lost your item on MIT campus or in MIT buildings, MIT Police maintains a separate lost and found. They respond 24/7. We make sure your report reaches them if your loss occurred in that area.
MBTA Lost and Found
Left something on a bus, subway car, or commuter rail vehicle? The MBTA operates a dedicated lost and found system. We route your report to their team based on the transit line or stop where you lost your item.
Logan Airport Lost and Found
Traveling through Boston Logan? The airport has a dedicated Lost and Found office on the Arrivals level. We guide you to submit your report directly if your loss happened in a terminal or TSA area.
Cambridge City Hall
General inquiries about city services and lost property can also be directed through City Hall. We help you know which department or office handles your specific type of loss.
Lost Pet
If you've lost a cat, dog, or other pet in Cambridge, the Cambridge Animal Commission coordinates with local shelters and Animal Control. Act quickly and post across multiple channels. For a comprehensive, monitored search strategy, file a priority lost pet report.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Don't navigate this alone.
The sooner you report your loss, the sooner all the official channels and community networks are working for you. Once you file, your item description is in the system, and our automated search begins immediately across every major public listing and social platform in the Cambridge area.
Report my lost item →Cambridge is a dense, dynamic city where things go missing every day: on the MBTA bus heading to MIT or Harvard, at Logan Airport terminals, in Harvard Square cafes, or on residential streets near Central Square and beyond. When it happens, you're faced with a fragmented puzzle: the police department, MIT Police (if on campus), the transit authority, airport services, and scattered community groups all operate independently. Making the rounds yourself takes hours and relies on hoping the right person found your item and posted it somewhere you'd see.
ReportLost simplifies that. One report to us, and we push your loss to all the relevant official channels and community spaces at once. Better yet, we don't stop there. Our automated surveillance monitors the entire public web, local Facebook groups, Reddit threads, and marketplace listings in real time for weeks or months on end. You describe your item once, and our system works for you behind the scenes, spotting 'found' posts that match yours and alerting you immediately, so you never miss a lead.
Common areas where items are lost in Cambridge
Tell us the neighborhood or landmark, and we'll make sure your report reaches the right local services
Harvard Square
A bustling commercial and transit hub where items vanish in cafes, shops, and on buses heading toward Boston.
Central Square
Another major transit and retail corridor where MBTA connections intersect with street-level activity.
MIT Campus and Memorial Drive
Campus buildings, residence halls, and the riverfront are frequent loss hotspots; MIT Police handle on-campus reports separately.
Porter Square
Shopping and dining area served by the Red Line and local bus routes.
Kendall Square
Dense with offices, restaurants, and transit; a common loss zone for commuters and visitors.
Community channels actively helping
We monitor these spaces continuously so you don't have to
Facebook group
Reddit community
Neighborhood app
Local classified listings
Questions about reporting a loss in Cambridge
How long does Cambridge Police hold lost items?
Cambridge Police stores unclaimed lost and found items for a standard holding period. Contact the Property & Evidence Unit at 617-349-3380 to confirm the current timeline and to check if your item has been turned in.
Where do I pick up a lost item once it's been found?
For items recovered by Cambridge Police, you will collect them at the Property & Evidence Unit, located at 125 Sixth Street, Cambridge, MA 02142. For MBTA items, contact the MBTA to arrange pickup. MIT Police items are retrieved directly through their office.
What if I lost something at Logan Airport?
Logan Airport maintains its own Lost and Found office on the Arrivals level between Terminals C and E. If your item was left in a terminal or at TSA, contact Logan's office directly. If it was on ground transportation or at a gate, MBTA or the airport carrier may have it.
Do I need to file a police report to retrieve my lost item?
For most personal items, a police report is not required. Contact the relevant lost and found office directly (Cambridge Police, MBTA, or airport). If the item is high-value or was stolen, ask about filing a report.
How long does ReportLost monitor the web for my item?
Our system continues to scan community listings, social groups, marketplaces, and public posts for 12 months after your report is filed. You receive alerts as matches appear, so you don't have to check daily.
Is ReportLost an official city service or police department?
No. ReportLost is an independent service that works alongside official lost and found channels. We are not affiliated with Cambridge Police, MIT Police, the MBTA, or Logan Airport. We complement their services by routing your report to them and automating the search for matches across the web.
Lost & found in nearby cities
Ready to find your lost item?
File your report right now. In minutes, your loss is in the system and circulating through Cambridge Police, MIT Police, the MBTA, and local community networks. Our automated surveillance starts immediately and runs for months. You focus on your day, and we focus on tracking down your item.
Start my report →ReportLost.org is an independent service and is not affiliated with Cambridge Police Department, MIT Police, the Massachusetts Bay Transportation Authority (MBTA), Boston Logan Airport, the City of Cambridge, or any other official agency or business mentioned on this page. We do not operate, maintain, or control the lost and found offices of these organizations. Our role is to route your report to the appropriate channels and to monitor public web listings, social media, and community posts for potential matches. Always verify any found item with the official lost and found office before claiming it.