Lost something in Union City? Here is who to contact.
One report and we route it to the Union City Police Department, Union City Transit, local shelters, and active social channels. Then our system monitors the web continuously, scanning marketplaces, community posts, and local channels 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
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 it works
You report the loss
Tell us what you lost, where, and when. We gather the details needed to file with the right departments.
We route it to the right places
Your report goes to Union City Police, local transit, shelters (if it's a pet), and gets posted to relevant community channels so locals can help.
Automated monitoring finds matches for you
Our system searches the web constantly, checking Facebook groups, Nextdoor, marketplaces, and local sites for posts matching your item's description, location, and date. You get an alert the moment a credible match appears.
Where to report a lost item in Union City
These are the main channels we reach out to on your behalf, plus what to expect.
Union City Police Department
The police department handles reports of lost property and maintains a lost and found inventory. You can reach the non-emergency dispatch line during business hours to inquire if your item has been turned in. We pinpoint your loss location and contact the right desk so your report gets filed correctly.
Union City Transit & AC Transit
If you lost an item on a Union City Transit bus, contact the local dispatcher. If it was on an AC Transit route serving the area, AC Transit's lost and found team may have it. We file reports with both services and check their inventories for you.
Union City Transit dispatcher: 510-471-1411 (option 1)|AC Transit Lost and Found: 510-891-4777 (option 2)
Union City City Hall & Local Services
City Hall can direct you to lost and found services at municipal facilities and help with inquiries about items lost in public spaces. We ensure your report reaches the right department and follow up with them so nothing falls through the cracks.
Lost pet?
If you've lost a dog or cat in Union City, the Tri City Animal Shelter and local animal control are your first stop. We contact shelters, post to pet-specific Facebook groups, and monitor PawBoost and other pet networks so you don't have to search alone. File a priority lost pet report for faster coordination with shelters and immediate social posting.
⚠️ Spotted incorrect or outdated information? Let us know so we can review it.
Don't search alone
Filing your loss early with Union City's services is a smart move, and once you've filed, let us take it from there. Our monitoring team watches for your item around the clock while you focus on other things.
Report my lost item →Losing something in Union City can feel like a dead end, especially when you have to call the police non-emergency line, contact Union City Transit, check multiple Facebook groups, and monitor Nextdoor every single day. The city's lost and found system works, but it's fragmented, and most people give up after a few calls.
ReportLost takes the burden off your shoulders. We file your report with the right local authorities and services, post it where Union City residents actually look, and then we do the hard part for you, the continuous search. Our automated monitoring tracks the web for months, matching found-item posts to your description and location so you can move on with your day.
Common places where items get lost in Union City
These neighborhoods and landmarks see the most lost and found activity. Wherever you lost your item, we'll help you reach the right people.
Downtown Union City & Main Street
Shopping districts, restaurants, and transit hubs where items are frequently left behind on buses and in shops.
Transit stations and bus stops
Union City Transit and AC Transit routes, where phones, bags, and personal items are often left on buses or forgotten at stops.
Hayward Regional Shoreline & parks
Popular outdoor spaces where personal items, keys, and bags are lost during recreation and family outings.
Retail and commercial areas
Shopping centers, restaurants, and service businesses where wallets, glasses, and everyday items are frequently left behind.
Residential neighborhoods
Local streets and community areas where pets go missing and residents post found items on neighborhood groups.
Union City community channels
Locals post found items and help reunite people with lost belongings here. We monitor these channels and post your item for you.
Active community dedicated to reuniting lost and found pets with families
Bay Area residents share lost and found posts, including Union City area items
Neighborhood-level posts where Union City residents frequently report found items and lost pets
General Union City and East Bay lost and found pages where locals connect
Dedicated lost pet network serving the Union City area with active shelter partnerships
Frequently asked questions
How long does the Union City Police Department keep lost items?
The police department typically holds unclaimed property for 90 days. After that, items may be disposed of or donated. This is why filing a report quickly and checking back within the first month is important, and why our continuous monitoring helps catch matches before items are lost forever.
What if I lost something on Union City Transit?
Call the Union City Transit dispatcher at 510-471-1411 (option 1) to report your loss and ask if it's been turned in. If it was on an AC Transit bus serving Union City, also contact AC Transit's Lost and Found at 510-891-4777 (option 2). We file with both services and track their responses for you.
How do I reclaim a found item from the police?
Contact the Union City Police Department's non-emergency line at 510-471-1365 (option 3) with a description of your item and the date you lost it. You'll need to identify it and may be asked to provide proof of ownership. We help you prepare the exact details to include in your claim.
Where should I look if I lost a pet in Union City?
Start with the Tri City Animal Shelter at 510-790-6635 or visit in person at 1950 Stevenson Blvd. Also call or visit nearby shelters in the East Bay. Check PawBoost and the Union City Lost & Found Pets Facebook group daily. Posting on these channels immediately increases your chances. File a lost pet report with us and we'll monitor pet networks for you.
Can ReportLost.org file an official police report for me?
ReportLost.org is an independent, free service that helps you report your loss to the right places and monitors the web for matches. We contact Union City Police and other local services on your behalf, but you own the official report filed with them. We do not replace the police, we work alongside them to improve your chances of recovery.
What makes ReportLost different from just posting on Facebook?
Posting on one Facebook group is a good start, but most people stop there and check manually every few days. We file with official services (police, transit, shelters), post to all relevant local channels, and then monitor the entire web continuously for 12 months, scanning marketplaces, new posts, and old listings. If a match appears weeks or months from now, you'll know immediately.
Lost & found in nearby cities
Report it here.
The sooner you report, the sooner we can monitor for it. You'll file with Union City's official services and get ongoing coverage while you move forward.
Start my report →ReportLost.org is an independent service and is not affiliated with the Union City Police Department, Union City Transit, AC Transit, Tri City Animal Shelter, or any other government or private entity mentioned on this page. We help you report to these services and monitor for matches, but we do not replace them. Always contact the official departments directly for urgent matters or to verify hours and procedures.