Lost something in Mastic Beach? File a report and let us handle the search.
One report to the Suffolk County Police Department, local lost pet networks, and community channels. Your report stays active and keeps searching for a match.
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
New York : the holding period scales with the item's value: the more it is worth, the longer the police must keep it. A finder must deposit an item worth $20 or more at a police station within 10 days. (New York Personal Property Law §§252-253)
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 it works
You file your report
Tell us what you lost, where, and when. We ask the right questions to capture details that matter: color, size, location, time of day.
We route it to the right places
Your report goes to the Suffolk County Police Department, local animal control (if it's a pet), and community groups actively searching in Mastic Beach and the broader Brookhaven area.
Your report keeps searching for you
Once filed, your report stays active and watches for matches across local channels, Facebook groups, and neighborhood networks. You'll get an alert if someone posts a found item matching your description, so you don't have to check back every day.
Where to report in Mastic Beach
Know your options. We help you navigate them all.
Suffolk County Police Department
The primary agency for lost and found property in Mastic Beach. You can file a report in person or online, and the police may have your item if it was turned in to a local precinct. We identify the right precinct or contact method for your loss location and help you file online.
Suffolk County Police (main line)|Non-emergency: 631-852-COPS
Town of Brookhaven
Mastic Beach is part of the Town of Brookhaven. Town Hall can sometimes assist with lost items or direct you to the right department. We include Town of Brookhaven contact info in your report so you have it on hand.
Town of Brookhaven main line|One Call Does It All: 631-451-TOWN
Lost pet? Act fast.
If you've lost a dog or cat, shelters and rescue organizations in the Brookhaven area need to know right away. A Right to Life for All Animals and local animal control are key contacts. Alert veterinary offices within a 5-mile radius too. ReportLost can help you file a priority lost pet report so it reaches shelters and community networks instantly.
A Right to Life for All Animals: 631-473-6332|file a priority lost pet report
Community & social channels
Mastic Beach residents and neighbors post found items on Facebook groups and neighborhood apps. These are often faster than official channels. We post your report to the right groups and monitor for matches continuously, saving you hours of scrolling.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
The sooner you report, the better.
Once your report is filed, your item is in the system. You can breathe easier knowing the search is happening, and you'll be notified if a match appears.
Report my lost item →Losing something in Mastic Beach—whether it's your wallet, house keys, a ring, or a beloved pet—can feel disorienting, especially when you realize you're not sure which office to contact first. The Suffolk County Police Department, the Town of Brookhaven, local animal shelters, and community Facebook groups all play a role, but they don't talk to each other. You end up making several calls, filling out separate forms, and then hoping someone remembers your item.
ReportLost simplifies that. File one detailed report with us, and we send it to the right authorities and networks in Mastic Beach. Your report doesn't disappear after a day or two, either: it stays active for your entire search period (12 months), automatically cross-checking new found posts and community alerts so you can focus on your life while we keep looking.
Common places to lose things in Mastic Beach
Knowing where you lost something helps us route your report to the right local contacts.
Mastic Beach Village Center
Neighborhood Road and the local shops and services around the village core—wallets, keys, and bags are often turned in here.
Waterfront & Beach areas
South Shore beaches and recreational areas where people lose phones, jewelry, and sunglasses. Local parks staff sometimes hold found items.
Residential neighborhoods (Dahlia, Neighborhood Road, etc.)
Quiet streets where pets slip away and personal items are found by neighbors. Community posts and Facebook groups light up with found pet alerts.
Local businesses & restaurants
Dining and retail spots on main thoroughfares where purses, glasses, and personal items are commonly lost and held.
Brookhaven area transit & parking
If you took a local bus or parked in a lot, check with transit lost and found and nearby commercial centers.
Community channels where lost items are posted
These groups and networks are where Mastic Beach neighbors report and search.
Active Facebook group for lost and found animals in the area—check here first if you've lost a pet.
Local Facebook community pages where residents post found items and lost pet alerts.
Neighborhood app where residents report lost and found items in real-time.
National lost and found pet database—great for circulating photos of missing dogs and cats.
Common questions about lost items in Mastic Beach
How long does the Suffolk County Police Department hold lost items?
Most police departments hold lost property for 30 to 90 days before disposing of it. Check with the Suffolk County Police Department as soon as possible—the sooner you file, the better your chances of recovering your item before that window closes.
What if I lost my pet in Mastic Beach?
Contact A Right to Life for All Animals (631-473-6332) and your local veterinary offices immediately. Post on Suffolk County lost pet Facebook groups and PawBoost. The more eyes on a lost pet, the faster it gets found. ReportLost can help you file a priority lost pet report that reaches all these channels at once.
Do I need to go in person to report a lost item to the police?
No. The Suffolk County Police Department offers online reporting through their website (suffolkpd.org). ReportLost can guide you to the right form and help you gather the details you'll need. You can also call the non-emergency line at 631-852-COPS to ask about your specific situation.
Where should I check if my item was turned in?
Start with the Suffolk County Police Department precinct covering your area, then check A Right to Life for All Animals (if it's a pet), local businesses or restaurants where you lost it, and community Facebook groups. ReportLost identifies the right places for your type of item and location.
How long will ReportLost keep searching for my item?
Your report stays active and continues to search for a match for your entire search period, whether you choose 12 months. We keep checking community posts, found pet networks, and local channels—you don't have to check back every day yourself.
Is ReportLost.org official or does it replace the police?
ReportLost is an independent service that works alongside official channels like the Suffolk County Police Department and local animal shelters—not instead of them. We're here to make sure your report reaches the right places and stays active longer than it would if you contacted each office separately. We're not a government agency, but we're trusted by thousands of people across the country who've lost items.
Lost & found in nearby cities
Your item can be found. Start your report now.
The longer you wait, the greater the chance your item is moved, donated, or lost to time. A few minutes now to file a detailed report means your search is active for months. Let's get started.
Start my report →ReportLost.org is an independent service and is not affiliated with the Suffolk County Police Department, the Town of Brookhaven, A Right to Life for All Animals, or any other official agency mentioned on this page. We work to route your lost item report to the appropriate local authorities and community channels, but we cannot guarantee recovery. Always contact local police and shelters directly if your situation is urgent.