San Anselmo, CA

Lost something in San Anselmo? Here are the offices that take your report.

Submit one report and we connect you with the Central Marin Police, San Anselmo City Hall, Marin Transit, and active local community channels. Your report stays active, continuously matching against new found items and community posts.

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

996
reports filed
163
in California

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

Local contact details reviewed on October 7, 2026.

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How ReportLost Works

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You Report the Loss

Tell us what you lost (wallet, ring, phone, keys, or anything else), where, and when. We gather the details that matter.

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We Route It to the Right Places

We file your report with the Central Marin Police, notify relevant local lost and found offices, and post to community channels where San Anselmo residents actively look for lost items.

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Your Report Keeps Searching

For 12 months, your report stays active and continues matching against new found posts, community announcements, and marketplace listings. You get an alert the moment a credible match surfaces, so you don't have to check every day.

Where Lost Items Go in San Anselmo

Understanding the key places and contacts for your search

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Central Marin Police

The San Anselmo station handles lost and found reports and can tell you if your item has been turned in. We file your official report here and confirm which precinct covers your loss location so nothing falls between the cracks.

Contact San Anselmo Police

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San Anselmo City Hall

Town Hall can assist with items lost in public spaces and direct you to the right department. We generate the exact details to include in your inquiry and point you to the right desk if you're following up on your own.

Contact City Hall

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Marin Transit Lost & Found

Lost something on a Marin Transit bus? Items are held for 30 days before being disposed. Call Customer Service right away to report and retrieve. We ensure your lost bus item is reported promptly so you don't miss the recovery window.

Marin Transit Lost & Found

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Lost & Found Pets

Missing a cat, dog, or other pet? Marin Humane maintains a searchable database of lost animals in the area and can help reunite you with your companion. If your pet is missing, file a priority lost pet report to activate immediate community alerts and shelter coordination.

Search Marin Humane Lost Pets

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Community & Social Channels

San Anselmo residents actively post found items on Facebook, Nextdoor, and r/Marin. We publish your report to these channels automatically, reaching dozens of neighbors without you having to post on every platform separately.

⚠️ Spotted incorrect or outdated information? Let us know so we can review it.

Start Your Search Right

The sooner you report your loss, the sooner your item enters the recovery pipeline. Marin Transit holds bus items for 30 days, and community memory fades quickly. A single report now saves you hours of back-and-forth calls, and your search continues on its own for months to come.

Report my lost item →

Losing something in San Anselmo can feel isolating. The police have their system, local shops have theirs, Marin Transit handles bus items separately, and your neighbors are sharing on Facebook and Nextdoor, all disconnected. By the time you've contacted everyone, days pass and momentum fades.

ReportLost simplifies the chaos. One report reaches the Central Marin Police, City Hall, transit authorities, and the community groups where locals actually post found items. Better yet, your report doesn't stop searching after a week. It stays active and keeps cross-referencing new found announcements automatically, so the heavy lifting is done for you while you move forward.

View of San Anselmo, CA

Common Places to Lose Items in San Anselmo

Check these neighborhoods and spots first, then file a report to reach them all at once

Downtown & San Anselmo Avenue

The heart of town with shops, restaurants, and offices. Wallets and phones slip away during errands; check with local merchants and file a police report for public space losses.

Marin Transit Bus Routes & Stops

Items left on buses or at stops have a 30-day window at Marin Transit lost and found. Call immediately if you've lost something on your commute.

Brookside & Residential Areas

Quiet neighborhoods where residents actively help each other. Lost pets and neighborhood items often turn up thanks to vigilant neighbors who post on community groups.

Local Parks & Recreation

Green spaces and community gathering spots are common loss locations. Parks and rec facilities may hold items; your report reaches both official and community channels.

Where San Anselmo Shares Found Items

Active community groups where your report will be posted automatically

Lost and Found Pets of Marin/Sonoma County/North Bay
Dedicated to reuniting pets with their families across the region
r/Marin
Marin County subreddit where locals post found items and ask for help
Nextdoor
Hyper-local neighborhood network where found items are often reported first
San Anselmo & Marin County Facebook groups
Multiple active groups for lost and found items and community alerts

Common Questions About Lost Items in San Anselmo

How long does Marin Transit keep lost items?

Marin Transit holds items found on buses for 30 days. After that, unclaimed items are disposed of. If you lost something on the bus, call Customer Service at (415) 455-2000 as soon as possible to confirm it's been turned in.

Where do I claim a lost item from the police?

Contact the Central Marin Police San Anselmo Station at (415) 927-5150 to confirm your item is in their custody, then arrange a time to pick it up. Items are typically held for a set period before being transferred or donated.

Can I file a lost report with the police online?

Yes, the Central Marin Police accept online reports at their website. You can also call (415) 927-5150 to file by phone. ReportLost files this report on your behalf and ensures it reaches the right channels.

How do I search for lost pets in the San Anselmo area?

Marin Humane maintains a searchable lost pet database. You can also post in Lost and Found Pets of Marin/Sonoma County/North Bay on Facebook or check Nextdoor. ReportLost posts a priority alert to these channels if your pet is missing.

What if I lost something at a local business?

Contact the business directly first. If unsuccessful, file a police report with San Anselmo Police and ReportLost will alert local shops and community groups simultaneously, multiplying your chances of a recovery.

Is ReportLost official? Does it replace calling the police myself?

ReportLost is an independent service, not affiliated with police or city government. We don't replace official reports, we complement them. When you use ReportLost, we ensure your report reaches the police, city, transit authority, and community channels all at once, plus your report stays active for months. You get the official filing plus extended community reach without doing it all yourself.

Lost & found in nearby cities

One Report, Multiple Channels, Months of Search

Stop juggling phone numbers and Facebook groups. Report once, let us route your lost item to the Central Marin Police, City Hall, Marin Transit, and every active community channel. Your report stays on the hunt for you, automatically matching against new found posts for 12 months. Peace of mind starts now.

Start my report →

ReportLost.org is an independent service not affiliated with the Central Marin Police, the Town of San Anselmo, Marin Transit, Marin Humane, or any government agency or business listed. We facilitate reporting and community coordination; official police reports and direct contact with relevant agencies remain your responsibility and prerogative. All contact information and links are current as of this publication and subject to change by the respective organizations.