Lost something in Fontana? Let us handle the search.
One report routes your loss to Fontana Police, San Bernardino County Animal Shelter, Ontario International Airport (if applicable), and local social channels. We then monitor the web continuously for found posts across marketplaces, Facebook groups, and community boards so you don't have to.
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
You submit your report
Tell us what you lost, where, and when. We gather all the details needed to alert the right departments and social channels in Fontana.
We route it to the right places
Your loss goes directly to Fontana Police Department, San Bernardino County Animal Shelter (for pets), Ontario International Airport if relevant, and active local lost and found groups.
Automated monitoring finds matches
We scan the entire web continuously, including Facebook marketplace, Nextdoor, local classifieds, and community pages for found posts matching your description, location, and date. When we spot a credible match, we alert you right away. You sit back while we search.
Where to report a loss in Fontana
The official channels we connect you to, plus what we handle on your behalf.
Fontana Police Department
The Fontana Police Department accepts lost item reports and maintains records that help reunite owners with found belongings. You can file a report in person or online through their Citizens Online Reporting System. We identify which precinct covers your loss location and generate the exact information to include in your report.
Fontana City Hall
City Hall can direct you to specific lost and found offices and help you understand where to claim items based on where you lost them (city property, parks, public buildings). We tell you which department to contact so you don't have to make multiple calls.
Lost or found pet
If you've lost a dog, cat, or other pet in Fontana, the San Bernardino County Animal Shelter is where found animals are taken. You can call directly, check their facility, or post to local pet alert groups. For faster results and priority monitoring across all pet networks, file a priority lost pet report with us.
Ontario International Airport
If you lost something at Ontario International Airport (about 15 minutes from downtown Fontana), their Lost and Found office is in Terminal 2 behind the Information desk. We point you to the right desk and contact info so you know exactly where to inquire.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
The faster you report, the better your chances.
Getting the word out quickly matters. Once your loss is documented with ReportLost, you can relax knowing that police, animal shelter, and local communities are all aware, and our monitoring team is actively searching the web on your behalf.
Report my lost item →Losing something in Fontana means checking multiple places: the Fontana Police Department, San Bernardino County's animal shelter, nearby Ontario Airport if your loss happened there, plus scouring Facebook groups, Nextdoor, and local marketplace boards yourself, day after day. It's scattered, time-consuming, and easy to miss a post.
ReportLost simplifies everything into one action. File once, and we take it from there, notifying every relevant Fontana authority and social channel, then running automated searches across the entire web for months so that found items matching yours pop up automatically. No more re-checking the same groups every morning, no more wondering if you missed something.
Common loss hotspots in Fontana
Places where people most often lose items and where we prioritize monitoring.
Downtown Fontana
The commercial heart of the city along Valencia Avenue, where items are frequently lost in shops, restaurants, and public spaces.
Parks and Recreation Areas
Fontana's parks, including sports facilities and outdoor spaces, where wallets, phones, and personal items go missing during activities.
Residential Neighborhoods
Items left in neighborhoods, yards, or during moving, often found by neighbors and posted on local community boards.
Retail and Shopping Areas
Shopping centers, gas stations, and convenience stores throughout Fontana where items are left behind daily.
Local networks we monitor
We search these channels continuously so you don't have to.
Active Facebook group for reuniting lost and found pets in the area
Facebook group covering Fontana, Rialto, Colton, and Bloomington
Community-based app where Fontana neighbors post found items
Local section where found items are often listed
Reddit community for the Inland Empire region
Frequently asked questions
How long will you monitor the web for my lost item?
We conduct automated searches for up to 12 months after you file your report, depending on the item type. For pets, we maintain active monitoring longer. You'll receive alerts immediately when we detect a potential match.
What if my item was lost on a bus or in transit?
Fontana is served by several transit providers (Foothill Transit, Omnitrans, and others). Report the loss through ReportLost and specify the bus line and approximate time. We'll direct you to the appropriate lost and found number, and we also monitor transit-specific channels for posted found items.
Do I need to call Fontana Police in person?
No, you can file online through Fontana's Citizens Online Reporting System. ReportLost helps you gather the right details to file. For complex losses or if you need to speak with an officer, you can visit non-emergency at (909) 350-7700.
Where do I pick up a found item once it's located?
It depends on where your item was found. If found at a business, it's usually held there. If turned in to police, you pick it up at Fontana Police Department (17005 Upland Avenue). For pets, the San Bernardino County Animal Shelter at 6333 Chandler Place. We'll tell you exactly where to go once a match is found.
How long do police and shelters keep lost items?
Most items held by police are kept for 30 to 90 days. Animals at San Bernardino County Animal Shelter are held longer and scanned for microchips. Check with the specific facility for their exact retention policy, or ask us when we route your report.
Is ReportLost.org official, or does it replace calling the police?
ReportLost is an independent service, not a police department or government agency. We work alongside Fontana Police, not instead of them. Your report is filed with the official authorities, and we add an extra layer of web monitoring to catch found posts you might otherwise miss. For emergencies, always call 911.
Lost & found in nearby cities
Here is where to report it.
Start your report now. Tell us what you lost, and we'll handle the routing, monitoring, and alerts so you can focus on other things. Most items are found within the first few weeks once the right people and networks know.
Start my report →ReportLost.org is an independent service and is not affiliated with the Fontana Police Department, San Bernardino County, City of Fontana, Ontario International Airport, or any other listed authority. We work in partnership with these agencies to distribute your report and provide automated monitoring. All links to official services are provided for your convenience; you may also contact these agencies directly.