Lose something in Sidney? Here is where to report it.
One report reaches the Sidney Police Department, City Hall, local animal rescue, and active community channels. Your report stays active, automatically crossmatching with new found items so you don't have to check every day.
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
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 Sidney
You report your loss
Tell us what you lost, where, and when. We gather the details that matter to Sidney's police and community channels.
We route it to the right places
Your report goes straight to Sidney Police (406-433-2210), City Hall, Annie Oakley Animal Rescue if it's a pet, and local social groups where found items are posted daily.
Your report keeps searching for a match
For your entire search period, your report automatically checks new found posts and community listings. You get an alert the moment a credible match appears, so you can focus on your day.
Where your lost item might be
We help you contact the right people. Here's who holds what in Sidney.
Sidney Police Department
Lost items turn up at the police station regularly, from wallets found on Main Street to phones recovered near downtown. We tell you how to describe your loss and which officer to reach.
City Hall
Items lost at municipal facilities, parks, or civic events are often turned in to City Hall. We point you to the exact desk that handles lost items and help you provide all necessary details.
Sidney-Richland Regional Airport
If you lost your wallet, phone, or bag while traveling through Sidney's airport, it may be held at the terminal. We tell you exactly what information to provide when you call.
Lost pet
If your dog or cat is missing, Annie Oakley Animal Rescue and local shelters are your first responders. Time matters with pets. We connect you to rescue networks and post your description where searchers look first. file a priority lost pet report
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
The sooner you report, the better your chances
Creating your report now gives ReportLost the details and timeline to begin matching immediately. Once it's filed, you can breathe, knowing we're actively tracking for you.
Report my lost item →Losing something in Sidney, whether at home, downtown, or on the road, puts you in a frustrating position: the police have it, or City Hall does, or it's sitting in someone's lost-and-found pile, or it's been posted in a Facebook group you haven't seen yet. Each organization handles losses independently, and manually calling them all and checking multiple channels every single day burns time you don't have.
ReportLost bridges that gap. You file once, we notify the right people and places, and your report stays active in the background, continuously matching incoming found items with your description. No need to become a daily detective, no second-guessing whether you've reached everyone. Once your report is in, our system works for you.
Common places where things are lost in Sidney
Knowing where you lost something helps us route your report to the right local teams.
Downtown Sidney
Main Street shops, restaurants, and pedestrian areas are high-traffic zones where wallets, phones, and rings slip out of pockets.
Parks and recreation areas
Sidney's outdoor spaces attract families and joggers, and lost items like bracelets, glasses, and bags turn up regularly.
Sidney-Richland Regional Airport
Travelers frequently leave items at check-in, gates, or in rental vehicles before flying out to Billings.
Local businesses and shops
Purses, keys, and personal items get left behind at restaurants, retail stores, and service stations around town.
Residential neighborhoods
Pets and items lost near home often turn up with neighbors or local animal rescue networks.
Sidney's lost and found community
These groups and channels post found items daily. We alert these communities for you.
Active Facebook group for lost animals and pet adoption
Montana-wide lost pet network that includes Sidney residents
Official city Facebook page for community notices
Police social channels where found items are sometimes posted
Questions about reporting a loss in Sidney
How long does Sidney Police hold lost items?
Items held by the Sidney Police Department are typically kept for a period before being donated or discarded. Contact them at (406) 433-2210 to confirm how long your item may be stored. This is why filing a report early matters, so we can start searching while the item is still in the system.
What if my lost item was found by a private business or neighbor?
Many people post found items on Facebook, especially in the 'Sidney Lost Pets and Pets for Adoption' group and local community pages. Our report includes these channels, so we automatically check new posts against your description and alert you if there's a match.
Does ReportLost contact Annie Oakley Animal Rescue for lost pets?
Yes, for lost animals we ensure Annie Oakley Animal Rescue is in the loop. For the fastest pet recovery, <a href="/report-lost-pet">file a priority lost pet report</a>, which routes to rescue networks immediately.
How does ReportLost keep my report active for 12 months?
Your report stays in our system and automatically crossmatches with new found items posted on community channels, social media, and local lost-and-found listings. You don't have to re-report or check manually, we alert you the moment a credible match appears.
What information should I have ready when I report?
Be ready to describe what you lost, where you last had it, the date and time, and any unique identifying details (color, brand, initials). We'll format this for the police report, City Hall, and social posts, so you don't have to rewrite it.
Is ReportLost.org official or part of the Sidney Police?
ReportLost is an independent service that works alongside official channels like Sidney Police and City Hall. We're not a government agency, but we partner with the right local authorities and communities to amplify your report and keep it active far longer than you could manage alone.
Lost & found in nearby cities
Your report is one form away
The sooner you file, the sooner we start working. Sidney's police, City Hall, Annie Oakley Rescue, and local social channels will have your information, and your report will remain active, searching for a match for months to come.
Start my report →ReportLost.org is an independent service and is not affiliated with the Sidney Police Department, City of Sidney, Sidney-Richland Regional Airport, Annie Oakley Animal Rescue, or any other official or private entity mentioned. We work with these organizations to amplify lost reports and coordinate responses, but we are not part of them. Always follow up directly with official channels for confirmation and legal matters.