lostandfound.io
Boulder's largest lost & found network

Lost or found something in Boulder?

Search thousands of reports or post your own — our community of 6,800+ listings helps reunite items every day

What are you searching for?

Have something to report?

Post a report in under a minute — we'll alert you the moment a match shows up.

6,800+
Listings
1,020+
Reunited
Boulder
Community

Recently reported

Live feed — newest reports in Boulder first.

View all reports →
lost E

Lost memory cards near Pearl Street Mall

I was wrapping up a sunset shoot at 4:20 p.m. near the Pearl Street Mall when my memory cards vanished from my camera bag. They’re tucked in a small black case with a blue zipper and a slightly scuffed corner. I retraced my steps from the Laughing Goat to the Boulder Creek Path, asking a few pedestrians, but nothing turned up. Those cards hold months of video footage and personal travel photos, and I’m panicked about losing them. If you found them on the ground near the fountain by the courtyard or along the bike path behind the courthouse, please let the site know so I can get them back.

Pearl Street Mall courtyard, Boulder 14 days ago
Found Nintendo Switch 2 in Tomtoc case curbside. found N

Found Nintendo Switch 2 in Tomtoc case curbside.

Found a black Nintendo Switch 2 in a tomtoc case around 2pm on curb street-side at the corner of 26th St(McGuckin Way) and Canyon Blvd in Boulder CO on July 3rd 2026. I imagine it haphazardly fell out of a vehicle window based on it's location and condition. You will need to verify the list of Users in order to claim. It seems to be a family console and has a Zelda card inside the case. Reach out directly to verify the Users if this is yours.

Urgent
Boulder 14 days ago
Lost wedding ring with L+I initials lost I

Lost wedding ring with L+I initials

Hi there, My husband went to Scott carpenter pool today and can’t find his wedding ring. He says he put it in his shoe and that someone must have stolen it. It is a black band with the initials L+I and our anniversary both on the inside. Thank you in advance

Reward Sentimental +1
Boulder 22 days ago
found C

Found: Postcards near Pearl Street, Boulder

I was hiking along the Boulder Creek Path and around 4:30 p.m. on Saturday I spotted a small stack of postcards lying on the railing near Pearl Street Mall. Some were vintage sepia-toned views, others bright travel cards; several had handwritten notes on the back. I picked them up and kept them safe in my bag, thinking someone must be missing them after their trip to the Flatirons. I’m posting here in case the owner sees this and can claim them on the site. It felt nice to help reunite a memory with the right person.

Pearl Street Mall gazebo 28 days ago
lost C

Lost Brooches in Boulder

I was strolling along Pearl Street Mall in Boulder around 3:15 PM on Monday when a gust of wind knocked something from my coat pocket. I turned around and didn’t see them—a pair of vintage brooches with sapphire centers. They mean a lot to me, as they were a gift from my grandmother, and I’m hoping they turn up with a bit of luck. If you found them near the Boulder Creek Path or by the Dushanbe Teahouse, I’d be grateful to have them back.

near Pearl Street Mall, downtown Boulder 30 days ago
lost N

Lost driver's license near Pearl Street Mall, Boulder

I realized my driver's license was missing this morning around 11:45 AM after a quick coffee stop near the Pearl Street Mall in downtown Boulder. I retraced steps from the library to the market and back to the car, but it didn’t turn up. This ID is essential for work and travel, and the thought of it being out there makes me anxious. If it surfaces, I just hope it lands back with someone who understands how it feels to misplace something so essential.

near Pearl Street Mall, downtown Boulder about 1 month ago

Browse by category

Jump straight to the kind of item you're looking for and browse current reports.

Guides for Boulder

All guides
Lost your phone? Step-by-step recovery Carrier contacts, Find My / Find My Device, and the local steps to recover or secure a lost phone. Lost wallet or purse — immediate steps The first moves to make when your wallet or purse goes missing — cards, ID, and protecting yourself from fraud. Lost pet — how to find them fast A fast, practical plan for finding a lost pet, plus the shelters and microchip registries to contact. Lost something on public transport? How to track down an item left on a bus, train, tram, or taxi by contacting the right transport operator. Found an item? Your responsibilities What to do when you find someone else's property — your responsibilities and how to return it safely.

How it works

Getting your lost item back or helping someone else is simple with our 3-step process.

1. Post your item

Create a free listing with photos and details about your lost or found item. Our spam protection keeps the community safe.

2. Community helps

Our community searches and matches lost items with found ones. Get notified when there's a potential match.

3. Get reunited

Connect directly with the person who found your item or claim the item you found. Arrange a safe meetup and celebrate!