Lost something in Claremont? Here are the offices that take your report.
One report and we connect you with the Claremont Police Department, local lost-and-found offices, and active community channels. Our system then 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
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 Claremont
You report the loss
Tell us what you lost, where, and when. Include details like color, brand, or distinguishing marks. We gather the exact information the police and local services need.
We route it to the right places
We submit your report to the Claremont Police Department's Found Property unit, notify relevant businesses or transit services, and alert community groups where locals post found items.
Automated monitoring finds matches for you
For months ahead, our system scans the web, local Facebook groups, Nextdoor, marketplace listings, and transit reports for posts matching your description, location, and date. You get notified the moment a credible match appears, so you don't have to check daily.
Where to report a lost item in Claremont
Key agencies and services that handle lost and found
Claremont Police Department
The police found property unit holds lost items by appointment. We identify which precinct and unit handles your loss, and provide you with the exact details to file a report or follow up on recovered property.
Contact Police (Found Property by appointment)|Non-Emergency: (909) 399-5411
Claremont City Hall
City Hall can direct you to the right department for lost items found on city property or in public spaces. We help you identify the correct contact and what information to provide.
Foothill Transit Bus Lost & Found
Items left on Foothill Transit buses go to a central lost-and-found office. We tell you which bus route to reference and what details to provide when you call to check for your item.
Foothill Transit Lost & Found Info|1-800-RIDE-INFO (743-3463)
Ontario International Airport
If you lost something during a flight or inside the terminal, Ontario Airport's lost-and-found office can help. We provide the location details and phone number you'll need.
Lost Pet
If your pet is missing, time matters. Claremont Animal Control and the Humane Society of San Gabriel Valley handle lost and found animals. Alert your community fast and file a priority lost pet report with us.
Animal Control: (909) 594-9858|Humane Society of San Gabriel Valley: (909) 623-9777
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Speed matters, but you're not alone
The sooner you file a report, the sooner our automated search begins scanning local channels, transit records, and community posts. Once you've reported it, relax; we're watching for your item across the web while you focus on other things.
Report my lost item →Claremont is a vibrant college town with busy commercial corridors, transit hubs, and public spaces where items go missing every day. Whether it's a phone lost on a Foothill Transit bus, a wallet left at a local shop, or something left at Claremont Station, you're juggling multiple agencies, lost-and-found offices, and community groups all posting found items in different places.
ReportLost streamlines the whole process. One submission gets your item listed with the Claremont Police Department, routed to the right departments, and entered into an automated search that tracks local announcements, social channels, and marketplaces month after month. You don't monitor ten websites daily; we do it for you and alert you when there's a real lead.
Common places where things go missing in Claremont
Neighborhoods and zones covered by local services
Downtown Claremont & Harvard Avenue
The civic heart with City Hall, shops, and restaurants. Items lost on the street or in stores here are often turned in to police or business owners.
Claremont Colleges & Village
The academic core around Pitzer, Pomona, and Scripps colleges. Busy pedestrian zones where phones, bags, and IDs are frequently mislaid.
Claremont Station & Transit Hubs
Where Foothill Transit buses converge and passengers transfer. A common spot for lost wallets, bags, and personal items.
Foothill Boulevard Commercial Corridor
Strip malls, restaurants, and retail on the main east-west route. High foot traffic means items left behind are often held by staff.
Residential Neighborhoods & Parks
Quiet streets and green spaces where lost keys, phones, and outdoor gear are sometimes found and posted on community boards.
Community channels where lost items get posted
Local groups actively sharing found items
Active Facebook group where residents post found pets and help reunite families.
Official and community pages where lost-and-found alerts are shared.
Neighborhood posts from local residents about found items and lost pets.
Reddit community for sharing lost and found pet information.
Frequently asked questions
How long does the Claremont Police Department keep found items?
Check with the police non-emergency line at (909) 399-5411 or the Found Property unit by appointment. Policies vary, but most agencies hold items for 30 to 90 days. Filing a report early increases the chance your item is still in their possession when you inquire.
What should I do if I lost something on a Foothill Transit bus?
Call 1-800-RIDE-INFO (743-3463) right away and provide the bus route number, approximate time, and a description of the item. Foothill Transit routes items to a central lost-and-found; response time is faster if you contact them within a day or two.
Where do I report a lost item found at Ontario Airport?
Contact Ontario Airport's Lost & Found office at (909) 544-5128. The office is located in Terminal 2 behind the Information desk. Have your airline confirmation or flight details ready if the item was left on an aircraft.
If I lost a pet in Claremont, who should I contact first?
Call Claremont Animal Control at (909) 594-9858 immediately and file a lost pet report. Also contact the Humane Society of San Gabriel Valley at (909) 623-9777. Post the loss in the Facebook group 'Lost and Found Pets Claremont, CA and Surrounding Areas' for rapid community visibility.
How does ReportLost help beyond the phone calls I could make myself?
You make one report to us; we do the routing, coordinate follow-ups, and monitor the entire web, local social groups, and marketplace listings continuously for months. You don't have to refresh the same Facebook group or call the police every week. Our automation watches and alerts you when a credible match appears.
Is ReportLost.org official or a replacement for the police?
ReportLost is an independent service; we are not part of the Claremont Police Department or any government agency. We enhance the official process by routing your report to the right departments, generating required details, and automating the web search that you'd otherwise do manually. We always direct you to official channels and never replace contacting the police directly.
Lost & found in nearby cities
Ready to report your lost item?
The faster you file a report, the sooner we begin our automated search across local lost-and-found offices, community groups, and the broader web. Once submitted, your report is in the system and working for you day and night.
Start my report →ReportLost.org is an independent service and is not affiliated with the Claremont Police Department, City of Claremont, Foothill Transit, Ontario Airport, Claremont Animal Control, the Humane Society of San Gabriel Valley, or any other agency or business mentioned on this page. We help route reports and monitor public channels; we do not handle lost items directly and do not replace contacting official agencies or police. All links to external services are provided for your convenience and reflect information current at the time of publication.