Boulder, Colorado

Misplaced something in Boulder? Report it once and let us track it down.

File your loss report with ReportLost, and we'll alert the Boulder Police Department, the City of Boulder, RTD Transit, and monitor local channels continuously so you don't have to.

๐Ÿ”Recently reported lost items in Boulder โ€“ updated this July 18, 2026

  • ๐Ÿ“ Bunch of keys lost near Gunbarrel Henge, July 13.
  • ๐Ÿ“ Medical bag lost near Lemons Strip, July 16.
  • ๐Ÿ“ Wireless earbuds lost near Restoration Area, July 14.
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How ReportLost Works

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You tell us what you lost

Describe your item, where you lost it in Boulder, and when. We capture all the details that matter for a real search.

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We route it to the right teams

Your report goes straight to the Boulder Police Department's Property and Evidence team, local transit lost and found, city services, and relevant community channels so each organization knows to look for your item.

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We scan the web continuously for matches

For months afterward, our system monitors Facebook groups, Nextdoor, Reddit, marketplace listings, and other public channels for posts about found items that match yours. You get an alert the moment we spot a potential match, so you never miss a lead.

Where Lost Items Go in Boulder

Reporting channels and how ReportLost gets the word out

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Boulder Police Department

The Boulder Police Property and Evidence Retrieval team handles lost and found items turned in to the department. Call or email to check if someone brought yours in, and make an appointment to retrieve it. We identify which precinct and desk handles your loss location and notify them directly.

Property and Evidence Retrieval

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RTD Lost & Found

If you lost something on an RTD bus in Boulder, RTD's Customer Care team maintains a lost and found database and physical holding areas. They keep items for a set period before disposal. We alert RTD with your description and monitor their found items list for potential matches.

RTD Lost and Found

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City of Boulder Services

The City of Boulder's main office and various municipal departments can be contacted about lost items found in public spaces, parks, or city buildings. We help coordinate with the right city department based on where your item went missing.

City of Boulder Contact

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CU Boulder Police Lost & Found

Items lost on the CU Boulder campus, at Folsom Field, or in university buildings are handled by CU Boulder Police. They maintain their own lost and found system separate from the city. If your loss is campus-related, we make sure CU Police hears about it.

CU Boulder Police Lost & Found

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Lost Pet in Boulder

Pets lost in Boulder should be reported immediately to the Humane Society of Boulder Valley and Boulder County animal services. The community is active on local pet recovery networks. If you've lost a dog or cat, file a priority lost pet report with us so we can mobilize specialized pet recovery channels.

Humane Society of Boulder Valley

โš ๏ธ Spotted incorrect or outdated info on this page? Let us know, we fix it fast.

The sooner you report, the better your chances

Items don't stay in lost and found indefinitely, and online posts disappear quickly. Getting your report into the system today means we can start our continuous web monitoring right away, and local services know to set aside your item if it arrives. Once your report is filed, you can breathe easyโ€”we're watching from here on.

Report my lost item โ†’

Boulder's outdoor culture and university scene mean items get lost everywhere, from the Pearl Street Mall to CU's campus, from RTD buses to the surrounding foothills. But when something goes missing, you're left calling the police, the transit authority, the city, local Facebook groups, and Nextdoor separately, hoping each one finds it or that someone posts about it while you're watching. It's fragmented and time-consuming.

ReportLost bridges that gap. One report reaches all the right channels at once, and then we keep watching the entire local web, 24/7, while you go about your life. You'll never wonder if a match was posted somewhere you didn't think to check, because we're checking everywhere continuously.

View of Boulder, CO

Common Places to Lose Something in Boulder

We monitor lost and found channels across all these zones

Downtown Pearl Street

The heart of Boulder's retail and dining scene, Pearl Street is where wallets, phones, and bags go missing most often. Police and local businesses share found items frequently.

CU Boulder Campus

Spanning from Regent Drive through academic buildings and residence halls, the campus has its own lost and found ecosystem. CU Police handle most campus discoveries.

RTD Bus Routes & Stations

Items are regularly left on buses and at transit stops across Boulder. RTD's system logs all discoveries, and we coordinate directly with them.

Folsom Field & Recreation Areas

Sports venues, hiking trailheads, and parks see plenty of lost keys, sunglasses, and gear. Local police and park services field these reports.

Hotels & Commercial Spaces

If you lost something at a hotel, restaurant, or retail location, those businesses often hold items in house before turning them over to the city or police.

Active Boulder Lost & Found Communities

We monitor these networks so you see every lead

Boulder Lost & Found Facebook Groups
Active community posts sharing found and lost items daily
Boulder County Pets Lost and Found (Facebook)
Dedicated pet recovery network with rapid response
r/boulder (Reddit)
Local subreddit where residents post about lost items and ask for advice
Nextdoor Boulder
Hyperlocal platform for neighborhood lost and found alerts
PawBoost
Specialized lost pet database and notification network for the Boulder area

Questions About Reporting Lost Items in Boulder

How long does the Boulder Police Department keep lost items?

The exact retention period varies, but the Boulder Police Property and Evidence team typically holds items for a reasonable time before donation or disposal. We recommend contacting them at 303-441-3340 to ask about your specific item. They'll also let us know the timeline, so we prioritize searching quickly.

Do I need to visit the police in person to claim my item?

Yes, generally you'll need to visit the Boulder Police Property and Evidence Retrieval office or make an appointment. They're located at the main police building and can verify ownership before release. We help you know exactly where to go and what to bring.

What if I lost something on an RTD bus?

Call RTD Customer Care at 303-299-6000 (press Option 3 for lost and found) during business hours. You can also visit the RTD lost and found window at their facility. We notify RTD about your loss and monitor their found items listings continuously.

How often does ReportLost check for my item on social media and online?

Our system runs automated searches multiple times per week, and more frequently in the days right after you file your report. We monitor Facebook groups, Reddit, Nextdoor, marketplace listings, and other public channels. The moment we detect a credible match, you'll get an alert with the source and details.

My item was lost on the CU Boulder campus. Who should I contact first?

Contact CU Boulder Police directly at 303-492-6666 or visit their Lost and Found office at 1050 Regent Drive. CU maintains its own system, and we'll make sure they're in the loop so our monitoring includes campus-specific channels and CU's internal alerts.

Is ReportLost.org an official city service or part of the Boulder Police Department?

No. ReportLost is an independent service that partners with and notifies official agencies like the Boulder Police, RTD, and the City of Boulder on your behalf. We're not part of any government body, but we work directly with these organizations to speed up the process and add continuous automated web monitoring that they don't provide alone.

Lost & found in nearby cities

Ready to report your loss?

The faster you file your report, the sooner we put all the local systems to work and begin our continuous search. You'll have the peace of mind of knowing that the Boulder Police, RTD, city services, and online communities are alertedโ€”and that we're watching every platform for matches, day and night.

Start my report โ†’

ReportLost.org is an independent service and is not affiliated with the Boulder Police Department, City of Boulder, RTD, CU Boulder Police, the Humane Society of Boulder Valley, or any other government or nonprofit organization mentioned. We work on your behalf to notify and coordinate with these entities and to monitor public online channels. All contact information and services listed are current as of our last update, but you should verify directly with the official organization before relying on specific hours, policies, or procedures.