Lost something in Montclair? File a report and we'll connect you with every recovery resource.
One report routes to the Montclair Police Department, local lost & found offices, and active community channels. Your report stays active, continuously searching for matches while you focus on other things.
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
California : found property must be held by law enforcement for at least 90 days before it can pass to the finder, be auctioned or disposed of. (California Civil Code §2080.2)
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 in Montclair
You file the details
Tell us what you lost, where, and when. We gather the specifics needed to alert the right Montclair authorities and community channels.
We route your report
Your information goes directly to the Montclair Police Department, relevant lost & found offices, and active local social networks so every agency has your description.
Your report keeps searching
We don't stop after day one. Your report remains active for your entire search period, automatically cross-referencing new found item posts and local listings so you're not checking Facebook groups or bus lost & found daily.
Where lost items go in Montclair
Know who has what, and let us point you in the right direction.
Montclair Police Department
If your item was lost in a public space or turned in as found property, the police may be holding it. We identify which station or office is relevant to your loss location and prepare the information you'll need when you call. You can also file a lost property report directly.
Local Bus & Transit Lost & Found
Left something on a bus? Multiple transit services operate in the Montclair area, including Foothill Transit and Riverside Transit. We'll help you identify which carrier and lost & found office to contact based on the route and time you traveled.
Foothill Transit Lost & Found|Riverside Transit Lost & Found
Ontario International Airport
If you left an item at Ontario Airport (ONT), the Lost & Found office is your first stop. Located in Terminal 2, they hold items for a set period. We'll provide their exact contact details so you can inquire quickly.
Montclair City Hall
For general lost property questions, permits, or items left at city facilities, City Hall can point you to the right department. We make sure your report reaches the relevant office contact.
Lost Pet Support
If you've lost a pet, the Animal Resource Center of the Inland Empire (ARC) serves the Montclair area and maintains a database of found animals. Active Facebook groups also connect pet owners with recent sightings. File a priority lost pet report to get immediate exposure in our pet-focused network.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
The sooner you report, the sooner we route.
Every hour counts when an item is fresh. Once you file a report with ReportLost, you've set the search in motion across all the channels that matter in Montclair. Then sit back, knowing your report is working around the clock.
Report my lost item →Losing something in Montclair can feel scattered. Your item might end up at the police precinct, a bus transit office, a local shop, or posted on Facebook by a well-meaning finder, but no single place knows about all of them. Instead of calling each office separately or refreshing community posts every few hours, ReportLost consolidates your report and sends it where it matters most in one action.
Once you file with us, the heavy lifting is ours. We make sure Montclair Police, transit lost & found contacts, and local community members all see your report. Better yet, your report doesn't disappear after a week; it keeps working for you for 12 months, automatically matching your description against new found items so you can take a breath and let the system do its job.
Common places where items are found
Neighborhoods and spaces where lost property often surfaces in Montclair.
Downtown Montclair & Central Avenue
The heart of the city where shops, restaurants, and foot traffic are high. Lost wallets and keys often turn up in nearby businesses or with police.
Montclair Park & Recreation Areas
Parks and recreational facilities are common loss spots. Items left on benches or at sports facilities may be reported to the city or park management.
Transit Hubs & Bus Routes
Items left on buses or at transit stops are typically held by the operating transit company. Foothill Transit and Riverside Transit serve this area.
Arrow Highway Corridor
Major street with retail and services. Items found along this corridor may reach the police or be turned in at nearby businesses.
Ontario Airport Area
Just east of Montclair, Ontario International Airport is a common loss location. The airport lost & found is heavily used during travel season.
Community networks in Montclair
Active groups where finders post found items and neighbors help search.
Facebook group for lost and found pets in the Montclair area
Community Facebook page linking to the Animal Resource Center
Neighborhood app where locals post found items and ask for help
City and neighborhood-specific groups where found items are shared
Frequently asked questions
How long does Montclair Police hold lost property?
Items turned in to the Montclair Police Department are typically held for a set period (usually 30 days to 3 months, depending on the item type). Contact them at (909) 448-3600 during business hours to inquire about a specific item. ReportLost ensures they have your report so they can identify your item when it comes in.
What if I lost something on a bus in the Montclair area?
Multiple transit systems operate here: Foothill Transit and Riverside Transit are the primary carriers. Contact the appropriate lost & found office with your route and travel date. Our report helps you pinpoint which carrier and provides their contact info so you don't waste time calling the wrong office.
Where do I go to claim a lost pet in Montclair?
The Animal Resource Center of the Inland Empire (ARC), located at 1630 Shearwater Street in Ontario, is the regional animal shelter. Call (909) 321-1080. Also check active Facebook groups and PawBoost, which aggregates found pets across shelters. Filing a lost pet report with ReportLost immediately alerts community networks.
How do I file a lost property report with Montclair Police?
You can call the Montclair Police Department at (909) 621-4771 (non-emergency dispatch) or (909) 448-3600 (business office). You can also file in person at 4870 Arrow Highway. ReportLost generates the details to include and tells you exactly what to expect.
If I lost something at Ontario Airport, what's the next step?
Ontario International Airport's Lost & Found is located in Terminal 2, behind the information desk. Call (909) 544-5128 to inquire. Items are usually held for 30 days. ReportLost can include the airport in your alert if your loss occurred there.
Is ReportLost.org an official city service?
No, ReportLost is an independent service that helps you report losses and connect with official channels. We are not affiliated with Montclair Police, the City, or any transit authority, but we work to ensure your report reaches them quickly and stays active during your entire search period. We complement official lost & found systems; we don't replace them.
Lost & found in nearby cities
Start your report now
The faster you report, the faster your item can be reunited with you. File once with ReportLost, and we handle routing it to every relevant office and community channel in Montclair. Your report keeps searching for a match throughout your entire recovery period.
Start my report →ReportLost.org is an independent service and is not affiliated with the Montclair Police Department, City of Montclair, Foothill Transit, Riverside Transit, Ontario International Airport, the Animal Resource Center of the Inland Empire, or any other city or transit agency. We help you report losses and route information to the appropriate official channels; we do not provide the lost & found services themselves. Always verify hours, policies, and contact information with official agencies directly.