Lost something in Larkspur? Report it and get back on track.
File one report and we route it to the Central Marin Police Authority, local transit services, and relevant lost and found channels. Your report stays active, automatically matching against new found item posts and alerts across the community.
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)
Reported in Larkspur
- Missing CatOctober 13
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, when and where you lost it, and any details that help identify it. We gather the information the right local services need.
We connect it to the right places
Your report goes directly to the Central Marin Police Authority, Marin Transit if applicable, Larkspur City services, and our community network. No back-and-forth calls from you.
Your report keeps searching for you
Instead of checking Facebook groups and local sites every day, your report stays active and continues matching against new found item posts, community alerts, and local listings for 12 months. You get notified if we find a match.
Where to report and what we handle for you
Larkspur has several places to check and report a loss. We connect you to all of them.
Central Marin Police Authority
The local police department handles lost and found reports and keeps records for items turned in. Reports are typically ready for pickup within 7 to 10 business days. We prepare your report with the right details for the police system.
Marin Transit Lost & Found
If you lost something on a local bus, Marin Transit maintains a dedicated lost and found service. Call their customer service team and provide details about your item and which route you were on. We can help you organize the information to report quickly.
Marin Transit Lost & Found|Phone: 415-455-2000 (7 AM to 6 PM weekdays)
City of Larkspur Services
Items lost in city parks, public spaces, or facilities can be reported to Larkspur City Hall. They coordinate with departments and help track community lost and found items. We'll point you to the right department based on where you lost your item.
Lost Pets
Pets need immediate attention. The Humane Society and local animal services in Marin County actively track lost and found animals. Many are reunited through community posts and shelter networks. If your pet is missing, file a priority lost pet report with us so we can help mobilize the animal rescue community right away.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Getting ahead makes a difference
The sooner your item is reported across the right channels, the sooner the community starts looking. Once you file with us, the work is done, the alarm is raised, and your report stays active searching for matches. No need to wonder if you've called the right place or missed a post.
Report my lost item →Losing something in Larkspur means contacting the police department, checking transit services, calling local merchants, and scrolling through community Facebook groups. It's scattered, and if you miss a day, you might miss a post. ReportLost consolidates that search into one central report that works for you.
When you file with us, your item description stays active across Larkspur's lost and found channels and community networks. We handle the notifications and cross-checking so you don't have to camp out on your phone hoping someone posts a match. Focus on your day, and let your report do the searching.
Common places where items go missing in Larkspur
Whether you lost something downtown or in a neighborhood, we connect your report to the relevant local services.
Downtown Larkspur
The heart of the community, where wallets, phones, and personal items are frequently left in shops, restaurants, and public spaces around Magnolia Avenue and Theater Drive.
Larkspur Ferry Terminal
A hub for commuters and travelers, where bags, keys, and personal belongings often turn up in waiting areas and boarding zones.
Parks and Recreation Areas
Open spaces and trails throughout Larkspur where items are lost during outdoor activities, from rings to glasses to backpacks.
Residential Neighborhoods
Quiet streets and community areas where lost pets and personal items are often spotted by neighbors who share through local networks.
Community networks helping with lost items
Local Facebook groups and Reddit forums are where Larkspur residents post and share found items. We connect your report to these spaces.
Active Facebook group for reuniting lost and found pets across the region
Marin County subreddit where residents post about lost items and pets in the area
Neighborhood app where local posts about lost and found items spread quickly among nearby residents
Official city channels that sometimes amplify lost item and lost pet alerts from the community
Questions about losing and reporting items in Larkspur
How long do the police keep lost and found items?
The Central Marin Police Authority typically holds items for a standard retention period. Reports are usually ready for pickup within 7 to 10 business days after they are filed. Items may be held longer depending on their nature. We recommend confirming your report status by calling 415-927-5150.
What if I lost something on Marin Transit?
Call Marin Transit Customer Service at 415-455-2000 (7 AM to 6 PM on weekdays). Have ready the route number, the approximate time, and a detailed description of your item. We can help you organize this information and ensure it's reported to the right department.
How do I search for my item after I report it?
Once you file with ReportLost, your report stays active and automatically searches for matches across community posts, social groups, and lost and found listings. You don't need to refresh Facebook or call around daily. We alert you if we find a potential match.
Can I report a lost pet through ReportLost?
Yes. Lost pets are urgent and deserve priority attention. File a lost pet report with us, and we'll alert animal shelters, rescue networks, and community groups in Marin County. Your pet's description stays active for the full search period.
What if my item is found at a local business?
Many Larkspur shops and restaurants hold lost items at their customer service desks. Your ReportLost report is visible to business owners and staff through community networks, so if someone turns in your item, they can see a match and contact you directly.
Is ReportLost.org official? Does it replace calling the police?
ReportLost is an independent service that works alongside official channels. We are not part of the police department, Marin Transit, or city government, but we route your report to them and amplify it through community channels. Filing with us does not replace filing a police report if one is needed, it supplements it and keeps your search active longer.
Lost & found in nearby cities
Start your report now
The sooner you file, the sooner Larkspur's network starts looking. Your report will stay active and continue searching for matches across all the right channels for months to come. You've done your part, we'll do ours.
Start my report →ReportLost.org is an independent service and is not affiliated with the Central Marin Police Authority, Marin Transit, City of Larkspur, or any local government or business listed on this page. We work in partnership with these organizations to route reports and amplify alerts, but we are not part of them. Always follow up directly with official services for the most current information about your lost item.