Lost something in Watertown? File a report and we'll do the legwork.
One report, and we notify the Watertown Police Department, City Hall, MBTA Lost & Found, local Animal Control, and active Watertown community channels. Your report stays active, so you can focus on your day while we keep matching it against new found item posts.
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 for Watertown residents
You file your loss
Tell us what you lost, where, and when. We gather the details that matter for a real search.
We route it to the right places
Your report goes straight to Watertown Police, City Hall, MBTA customer support (if transit-related), Animal Control (for pets), and the right social channels in one go.
Your report keeps searching
For the full duration you choose, your report stays active and automatically checks new found item posts, marketplace listings, and announcements. We alert you the moment a credible match appears, so you don't have to refresh websites every day.
Where to report a lost item in Watertown
Official channels and what to expect
Watertown Police Department
File a police report for stolen or lost items. The Records Unit processes reports and can provide a report number, essential for insurance claims and recovery. We identify which precinct covers your loss location and ensure your details are logged correctly.
Police Department main line|Phone: 617-972-6500|Records Unit: 617-972-6527
Watertown City Hall
City Hall coordinates across departments and can direct you to the right office depending on where you lost your item. They keep records of items turned in to municipal offices and can advise on next steps. We make sure your report reaches the right desk.
MBTA Lost & Found
Items left on buses or at MBTA stops in Watertown are held and catalogued by route. Call with your bus number and the exact stop or time. We generate the right information to pass along so staff can locate your item quickly.
Lost Pet? Contact Animal Control
The Watertown Animal Control Officer handles all lost and found pet reports and coordinates with the community to reunite families. Report immediately so your pet is in the system. If you've lost a pet, file a priority lost pet report with us to multiply your reach.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
The sooner you report, the sooner we start searching.
Every hour counts in a lost item search. Once you file a report with us, you've notified Watertown Police, City Hall, MBTA, and the community all at once. Then your report works for you around the clock for months.
Report my lost item →Watertown spans from the Charles River corridor to the neighborhoods along Main Street, and losing something across town means checking with the police, the transit authority, social media groups, and animal control separately. Each agency has its own process, timelines, and channels. By the time you've left messages everywhere, momentum is already slipping.
ReportLost shortcuts that chaos. File once, we notify all the right places in Watertown at the same time, and then your report continues searching automatically for months. You won't have to visit the same Facebook groups or Reddit threads day after day; your signalement works in the background while you move forward.
Common places where items go missing in Watertown
File your report no matter where the loss occurred
Downtown Watertown & Main Street
Shops, restaurants, and the heart of town see frequent lost item reports. City Hall and police are steps away, making it a quick reporting zone.
MBTA Bus Routes & Stops
Items left on buses or at shelters are logged by route number. Have your bus line and approximate time handy when you report.
Charles River Parks & Trails
Along the waterfront and recreational areas, items are sometimes found by other walkers or joggers. Local groups often share found items on social media.
Residential Neighborhoods
Yards, driveways, and streets throughout town. Animal Control and neighbors help track down lost pets in these areas.
Watertown's active lost & found communities
Real people, real reunions
Facebook group for lost and found pets across Watertown
Neighborhood Facebook group with community updates and lost item posts
Reddit subreddit for Watertown residents sharing local news and missing items
Broader subreddit where Watertown residents post about lost items across the state
Frequently asked questions about lost items in Watertown
How long does Watertown Police hold lost and found items?
Police typically hold items for 30 to 90 days, depending on the nature of the item. Contact the Records Unit at 617-972-6527 (Monday–Friday, 6:30 AM–2:30 PM) to check if your item has been turned in. File a report as soon as possible to enter the system.
What if I lost something on an MBTA bus in Watertown?
Call the MBTA Lost & Found at 617-849-9555 (Monday–Friday, 6:30 AM–8 PM; Saturday–Sunday, 7 AM–6 PM) with your bus route number and the approximate time. Items are held for a set period, so act quickly. We can help you gather the right details to speed up the search.
Can I report a lost pet without going in person to Animal Control?
Yes. Call Animal Control at 617-972-6446 to report a lost or found pet. They will enter your pet into their system and coordinate with other shelters and community networks. Filing a priority lost pet report with ReportLost ensures your pet's description reaches social media and local groups immediately.
Does City Hall keep a lost and found for items turned in across departments?
City Hall (149 Main Street, 617-972-6486) can direct you to the department that may have your item, and some offices maintain lost and found bins. ReportLost makes sure your report is routed to the right city desk, saving you phone calls.
What should I include in my lost item report to increase the chances of recovery?
Include the exact location (street name, nearby landmark), the date and approximate time, a detailed description (color, brand, distinctive marks), and any identifying numbers or photos. We use this information to create an alert that resonates with finders and the right agencies.
Is ReportLost.org an official Watertown service, or does it replace the police?
ReportLost is an independent service that works alongside official channels. We are not the police, and we do not replace filing a report with Watertown Police or Animal Control. Instead, we notify them on your behalf and keep your report active across official and community channels for months, so you don't have to check multiple places every day. For emergencies or crimes, always call 911.
Lost & found in nearby cities
Here is where to report it.
The first step is simple: tell us what you lost and where. From there, we notify Watertown Police, City Hall, MBTA, Animal Control, and the community. Your report stays active and keeps searching while you focus on your life.
Start my report →ReportLost.org is an independent service and is not affiliated with Watertown Police, Watertown City Hall, the MBTA, Watertown Animal Control, or any other official agency or municipality. ReportLost does not replace filing a report with these agencies directly. All information, phone numbers, hours, and procedures on this page are believed to be accurate as of the date of publication but may change. Please verify directly with each agency for the most current details.