Lost something in Seaside? We'll track it down for you.
One report connects you with the Seaside Police Department, local transit lost & found, Monterey Regional Airport, and every relevant lost & found channel in town. Then we scan the web continuously, 24/7, for matches across social media, marketplaces, 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 in Seaside
You describe your loss
Tell us what you lost, where, and when. We gather the exact details that matter to police, transit, businesses, and community networks in Seaside.
We route your report to the right places
Your report is directed to the Seaside Police Department, MST (Monterey-Salinas Transit) lost & found if it was on a bus, Monterey Regional Airport if needed, and local community channels where people actively post found items.
We monitor for your item continuously
Our system scans Facebook groups, Craigslist, Nextdoor, and other local platforms every day for weeks. The moment a credible match appears, you get an alert. No more checking sites yourself or refreshing the same pages daily.
Where to report a lost item in Seaside
Direct channels if you want to reach out yourself, and what ReportLost does on your behalf
Seaside Police Department
The Seaside Police Department accepts lost item reports and maintains a lost & found. Visit them in person at City Hall or call their non-emergency line during business hours. ReportLost generates the exact details you'll need and tells you which contact method works best for your situation.
MST (Monterey-Salinas Transit) Lost & Found
If you left your item on an MST bus, their lost & found office holds items for a set period. Call their customer service line or fill out their online form. ReportLost ensures your report reaches them with all the bus line, time, and description details they need to locate it quickly.
Monterey Regional Airport (MRY) Lost & Found
Items left at the terminal or security are handled by the airport's Lost & Found office on the second floor. They're open weekday business hours. If you lost something at MRY, ReportLost connects your report to their office with all relevant flight and location details.
Local businesses & public spaces
Lost something at a restaurant, store, park, or other venue in Seaside? Reach out to the business directly, but also report it to us. ReportLost posts an alert across local Seaside community groups so that whoever finds it knows where to look for you.
Lost pet?
If you've lost a dog, cat, or other pet in Seaside, time is critical. The SPCA for Monterey County and Monterey County Animal Services both take lost pet reports and maintain searchable registries. You should report immediately to both, plus post on community pet groups. For the fastest path forward, file a priority lost pet report with us so we monitor pet-specific channels and alerts around the clock.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Why reporting early matters
The sooner you file a report, the sooner our system starts scanning. Every day counts, especially for items left on buses or in public places where staff processes and catalogs found goods on a schedule. Getting your description into the right hands immediately improves your odds, and once you've filed with us, the searching shifts to our team.
Report my lost item →Losing something in Seaside means contacting multiple places separately: the police department on Harcourt Avenue, MST if it was on a transit bus, potentially the airport, and then scrolling through a dozen Facebook groups and Craigslist hoping someone posts what they found. By the time you've made those calls and checked those sites again tomorrow, the window for recovery shrinks.
ReportLost bridges that gap. We take your report, deliver it to every relevant local authority and community channel in one step, and then do the monitoring work for you. Our automated searches run continuously across the web, checking lost & found posts, community boards, and marketplace listings in the Monterey Peninsula area. You're not racing the clock alone, and you're not missing a post because you didn't check at the right moment.
Common places where items go missing in Seaside
If you lost something in one of these locations, report it to us and we'll route your details to the right place
Downtown Seaside & Harcourt Avenue
The civic center area around City Hall, shops, and restaurants is high-traffic. Items turned in often go to the Police Department or nearby business offices.
Seaside Bay Beach & waterfront
Beach areas see plenty of foot traffic and lost items. Reporting to us means we'll check beach cleanup initiatives, nearby parking areas, and lifeguard stations.
MST bus stops and transit routes
Buses running through Seaside along Fremont Boulevard and other main corridors are common places to leave items. MST's lost & found holds items for a limited time.
Monterey Regional Airport (MRY)
Travelers frequently leave items at security, baggage claim, or terminals. The airport has a dedicated lost & found, and we'll ensure your report reaches them immediately.
Local parks & recreation areas
Parks throughout Seaside may have items turned in to maintenance or local rangers. Our network reaches those contact points.
Community channels where found items get posted
These groups are active in the Seaside and Monterey Peninsula area. ReportLost scans them for you automatically.
Active Facebook group for lost and found pets
Dedicated to helping pets reunite with owners across the county
Reddit community where locals post lost & found items and ask for help
Classic marketplace where people post lost and found items
Official city channel sometimes used for community alerts
Hyperlocal neighborhood app where residents post found items
Frequently asked questions about lost items in Seaside
How long does the Seaside Police Department keep lost items?
The police maintain a lost & found, but hold times vary. MST transit items are typically held for 30 days. It's best to report within a few days and check with them directly at 831-899-6700 or visit City Hall at 440 Harcourt Avenue.
What if I lost something on an MST bus?
Call MST Customer Service at 1-888-678-2871 (888-MST-BUS1) during business hours, or fill out their online form at mst.org. Have your bus line number and route ready. ReportLost will send your details to them and monitor for any posts about your item.
I lost my item at Monterey Regional Airport. Who do I contact?
Call the MRY Lost & Found office at 831-333-2300. They're on the second floor of the terminal, open 8 a.m. to 5 p.m., Monday through Friday. ReportLost ensures they have your full report and monitors airport channels.
How does ReportLost's monitoring work? What sites does it check?
We scan Facebook groups (like the Monterey Peninsula lost & found groups), Craigslist's lost & found section, Nextdoor, local community pages, and other public platforms where Seaside residents post found items. Our system runs these searches repeatedly over weeks and alerts you if a credible match appears. You don't have to refresh these sites yourself.
What if I lost a pet in Seaside?
Call the SPCA for Monterey County at 831-373-2631 or Monterey County Animal Services at 831-769-8850. Visit them in person to search their animals. Also post immediately in local pet groups on Facebook. For the fastest comprehensive response, file a priority lost pet report with us so we monitor pet channels 24/7.
Is ReportLost.org official, or does it replace the police?
ReportLost is an independent service, not part of any government agency. We don't replace official reports; we complement them. You should always report to the police, transit, or business directly as needed. What we do is consolidate that information, deliver it to the right places, and monitor the web continuously so you don't have to.
Lost & found in nearby cities
Here is who to contact.
The sooner you report, the sooner we start monitoring. Describe what you lost, where, and when, and we'll take it from there. Our team routes your report to every relevant Seaside office and community channel, and our system scans for matches around the clock.
Start my report →ReportLost.org is an independent service and is not affiliated with the Seaside Police Department, City of Seaside, Monterey-Salinas Transit (MST), Monterey Regional Airport, the SPCA for Monterey County, or Monterey County Animal Services. We are not an official government agency. Always file reports directly with the relevant local authorities and businesses as well.