Lost something in Demarest? Report it once and let us handle the rest.
One report connects you with the Demarest Police Department, NJ TRANSIT Lost & Found, and local community channels. Your report stays active, keeping an eye out for matches across lost item posts and local networks.
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
No report has been filed in Demarest yet. Yours would be the first, and it gets a public page that anyone who finds your item can search.
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 what you lost
Tell us what went missing, where you lost it in Demarest, and any details that make it unique. We guide you through the exact information the local police department and other services need.
We route it to the right places
Your report goes straight to the Demarest Police Department, NJ TRANSIT (if relevant), and gets shared with active community lost & found channels. No need to make multiple calls or fill out separate forms.
Your report keeps searching automatically
Once filed, your report stays active and continues matching against new found item posts, community alerts, and local marketplace listings for 12 months. You get notified if a credible match surfaces, so you're not refreshing social media yourself every day.
Where to Report in Demarest
If you prefer to report directly, here are the official channels. ReportLost handles coordination and follow-up for you.
Demarest Police Department
The Demarest Police Department is the primary authority for lost and found items within the borough. They maintain records and can help you file an official report. We automatically route your report to the right department and provide you with the contact details and information they'll need.
NJ TRANSIT Lost & Found
If you left your item on a bus or at a transit stop, NJ TRANSIT's Lost & Found is your recovery point. They process reports online and maintain lost items for a set period. We tell you exactly which transit route or location applies and help you file the report.
Newark Airport (EWR)
Lost something at Newark Liberty International Airport or on a connecting flight? EWR and individual airlines each manage their own lost & found systems. We point you to the right contact and help you file the report with the relevant airline or airport authority.
Lost Pet
Lost a cat or dog? The Demarest Police Department often assists with lost pet reports, and the Bergen County community has active lost pet networks on social media. Time is critical with pets, so alerting both local law enforcement and community groups immediately increases the odds of a reunion. File a priority lost pet report to activate our dedicated pet recovery network.
Borough of Demarest
The Borough Clerk's Office and Borough Administrator can direct you to additional resources or municipal lost & found facilities if your item was lost at a borough building or community event. We generate the exact details to include in any inquiry.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Starting your report takes five minutes.
The sooner a description is in circulation, the sooner someone who found your item will see it. ReportLost keeps that description active and matching for months, so you're covered even if recovery takes time.
Report my lost item →Losing something in Demarest means contacting the police department, checking NJ TRANSIT if it happened on a bus, scrolling through local Facebook groups, and hoping someone finds your item and posts about it. These channels work independently, which means your lost item might surface somewhere and nobody thinks to tell you. ReportLost bridges that gap in one go.
We file the report with Demarest Police, alert the transit authority, and publish your description across the community networks that matter most. Once your report is in the system, you can breathe easy, the search continues on your behalf, and any credible match triggers an alert straight to you. Getting ahead on this in the first few hours or days significantly improves your chances.

Common Places to Lose Items in Demarest
If you remember roughly where you lost your item, it helps narrow the search.
Downtown Demarest & Serpentine Road
Main business district and central borough area where wallets, phones, and personal items are frequently reported lost at shops and community spaces.
Public Transit Stops & Routes
NJ TRANSIT bus stops and vehicles serving Demarest are hotspots for lost bags, phones, and accessories; report to NJ TRANSIT immediately if you think your item is on a bus.
Parks & Recreation Areas
Local parks and outdoor gathering spots where rings, bracelets, and phones slip away during activities; check with Demarest Parks & Recreation.
Demarest Free Public Library
Community library where forgotten items are common; staff often hold lost items at the circulation desk for a limited time.
Residential Areas & Sidewalks
Suburban neighborhoods where residents may find lost items and post about them in local community groups or directly contact the police.
Community Networks in Demarest
Lost items are often spotted and shared in these spaces. ReportLost alerts these channels automatically.
Active Facebook group for lost and found animals in the area, includes Demarest sightings and reunions
Facebook community group covering Demarest and nearby towns, where found items and lost inquiries are posted
Reddit community for New Jersey residents, includes lost and found posts for the broader Bergen County area
Official Demarest Police accounts sometimes repost lost pet and found item updates from the community
Neighborhood social network where residents alert each other to lost and found items
Frequently Asked Questions
How long does the Demarest Police Department hold lost items?
The exact holding period depends on the item type and department policy. Contact the Demarest Police at (201) 768-1540 to ask about your specific item. Most departments hold unclaimed items for 30 to 90 days before disposal or donation.
Can I file a lost item report online with Demarest Police?
Demarest Police's primary reporting method is by phone or in person. ReportLost helps you prepare the exact information to provide and ensures your report is documented and routed correctly.
If I lost something on NJ TRANSIT, how long do they hold it?
NJ TRANSIT typically holds lost items for 30 days. File a report immediately at njtransit.com/lostandfound or call (973) 275-5555. The sooner you report, the sooner they can locate and set it aside for you.
What if I lost my item at Newark Airport?
Newark Airport (EWR) holds found items for up to 60 days. If you believe your item is at the airport, contact EWR Lost & Found directly, or let us know and we'll guide you through the claim process. If it was on a plane, also contact your airline's lost & found.
Does ReportLost replace calling the police or NJ TRANSIT?
ReportLost is a coordination and outreach service, not an official government agency. We help you file reports with the right authorities, amplify your lost item description across community networks, and keep your report active so you don't have to check multiple sources every day. You are always welcome to contact Demarest Police or NJ TRANSIT directly, but we make sure nothing falls through the cracks.
What should I do if someone finds my lost item but I haven't filed a report yet?
If you find yourself reunited with your item before filing a report, congratulations. However, if you're still searching, filing a report immediately ensures that if another similar item is found, or if someone posts about it in a community group, your name and contact information are already in the system. It's your backup plan and your ongoing search.
Lost & found in nearby cities
Your lost item isn't gone yet.
Dozens of people in Demarest's community networks, NJ TRANSIT, and local authorities could be in a position to help. A single report lights up all of those channels at once, and your description stays active so you're not constantly checking Facebook or Reddit yourself.
Start my report →ReportLost.org is an independent service and is not affiliated with the Demarest Police Department, Borough of Demarest, NJ TRANSIT, Newark Airport, or any other government or transportation authority. We do not store lost items ourselves; instead, we coordinate reporting on your behalf and keep your item description circulating across official channels and community networks. Always confirm details with the relevant authority directly.