Lost something in Clayton? Report it once and we'll handle the rest.
One report gets routed to the Clayton Police Department, local transit services, and active community channels. Your report stays active, automatically matching against new found items.
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 it works
You tell us what you lost
Describe your item, where you lost it, and when. We gather all the details we need in one simple form.
We notify the right places
Your report goes directly to the Clayton Police Department, Tri Delta Transit lost and found, local businesses, and relevant community groups. You don't have to make multiple calls.
Your report keeps searching
While you move forward, your report stays active across all those channels for 12 months. We alert you instantly if a matching found item surfaces, so you're not checking Facebook groups every day.
Where to search and report
In Clayton, items turn up in several places. Here's where they typically end up and what to do.
Clayton Police Department
The Clayton Police Department takes lost and found reports. Items turned in to local businesses often get held here, and officers can direct you on next steps. For non-emergencies, call during business hours. We identify which precinct covers your location and connect you with the right contact.
Tri Delta Transit Lost and Found
If you left your item on a local bus, Tri Delta Transit maintains a centralized lost and found. Items are typically held for a set period. Call their office during business hours and have your bus route information ready. We make sure your report reaches them so they're actively checking against items turning in.
Local businesses and gathering spots
Wallets, rings, and bags often land at the front desk of shops, restaurants, and community centers near where you lost them. If you remember the store or location, call ahead and ask if anyone turned it in. Our network alerts relevant local businesses in your loss area.
Lost pet?
If you've lost a cat or dog, time matters. The Contra Costa Animal Services shelter in Martinez holds found animals for a minimum of 3 business days. Call immediately and bring proof of ownership if you find your pet. For the fastest response and the widest search, file a priority lost pet report with us.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Don't let your lost item slip away
The sooner you report, the sooner we connect you to every channel that matters. Your item is more likely to be found if the police, transit, and community know about it today.
Report my lost item →Losing something in Clayton can feel like the search never ends. You'd normally have to call the police non-emergency line, check with transit if you left it on a bus, visit multiple shops and community centers, and keep scrolling through Facebook posts hoping someone found it. Different offices, different hours, no coordination.
ReportLost connects you to all those places at once and keeps your search going automatically. File one report, and we make sure the Clayton Police Department, Tri Delta Transit, local businesses, and community networks are looking alongside you. Your report doesn't go inactive after a day or a week. It stays live for your entire search period, matching against new found items so you don't have to chase leads yourself.
Common places to lose items in Clayton
Most losses happen in these neighborhoods and spots around town
Downtown Clayton and Heritage Trail
Shopping, dining, and city services cluster around Heritage Trail and downtown. Wallets and bags left at restaurants or shops often get turned in to nearby businesses.
Clayton Road corridors
The main thoroughfare sees frequent foot and vehicle traffic. Items left on buses, in taxis, or at roadside stops here are common reports.
Parks and recreation areas
Clayton's parks and outdoor spaces are where people lose phones, keys, and personal items. Check with the parks department if you lost something outdoors.
Transit stations and bus stops
Tri Delta Transit buses and transfer points account for a steady stream of lost phones, bags, and personal belongings.
Community groups and alerts
These are where many lost items are posted by finders
City and community updates, including occasional lost and found posts
Active community groups focusing on missing and found animals
Regional Facebook groups and community boards where items are reported
Neighborhood social platform where residents post about lost items and found goods
Frequently asked questions
How long does the Clayton Police Department hold lost items?
The exact hold time depends on what you lost and where it was found. Typically, items are held for 30 to 90 days before being donated or disposed of. Call the non-emergency line at 925-673-7350 to ask about your specific item and get a hold date.
What should I do if I lost something on a Tri Delta Transit bus?
Call Tri Delta Transit's lost and found line at 1-925-754-6622 during business hours (Monday–Friday, 8am–5pm). Have your bus route, route number, and a description of your item ready. Items are held for a set period before being transferred.
If I lost a pet, where do I start searching?
Contact Contra Costa Animal Services immediately at 925-608-8400. Animals are held for a minimum of 3 business days, so fast action counts. Visit the shelter at 4800 Imhoff Place in Martinez with proof of ownership. Also file a priority lost pet report with us to reach community networks faster.
Is there a lost and found at Clayton City Hall?
City Hall (6000 Heritage Trail) may have a lost and found for items turned in by the public. Call the main number at 925-673-7300 to ask if anyone has reported your item. We include the city in our alert network.
How long will ReportLost keep searching for my item?
Your report stays active for your entire search period, which you choose at signup (typically 12 months). During that time, we monitor local channels and alert you automatically if a matching found item emerges. You don't have to resubmit or follow up manually.
Is ReportLost.org an official city service?
No, ReportLost is an independent service that works alongside official channels like the Clayton Police Department and Tri Delta Transit. We don't replace their lost and found operations, but we connect you to them immediately and keep your search active long-term. You still retain the option to contact any agency directly.
Lost & found in nearby cities
Ready to search the right way?
File your report now and let us connect you to the Clayton Police Department, Tri Delta Transit, and community channels. Once you've reported, the heavy lifting is ours. Your item has a much better chance of finding its way home when the whole community is looking together.
Start my report →ReportLost.org is an independent service and is not affiliated with or endorsed by the Clayton Police Department, City of Clayton, Tri Delta Transit, Contra Costa Animal Services, or any other government or commercial entity mentioned. We work to distribute your report to relevant local channels, but we do not operate their systems or guarantee recovery. Always verify contact information directly with official sources.