Marin Humane in Novato is where to go if your dog goes missing in Marin County. They’re required to hold stray animals for six days minimum, though staff try to keep them longer when possible. When you arrive, they’ll help you file a lost report and walk you through their stray, adoption, isolation, and quarantine housing areas so you can look for your dog yourself. You can also check the Lost & Found books at the front counter.

Beyond in-person visits, use their lost animal recording to search remotely. Call 415-883-4621 after 6 p.m. daily—the recording updates each evening and lists only animals brought in during the previous 48 hours, so you’re checking recent arrivals. Press 377 for lost dogs specifically.

You can also email them at lostanimals@marinhumane.org with a photo of your dog, including his name, the date he went missing, your phone number, and the city where you last saw him. Type “Lost Dog” in the subject line so it gets routed correctly.

If you find a stray dog yourself, call Marin Humane right away at 415-883-4621 to report it. Then bring the dog to them as soon as you can. They’ll scan for a microchip (which is why checking for one should be your first step if you find any dog) and file a found animal report. You have the option to leave the dog with them rather than keep him while searching for his owner, which takes pressure off if you can’t foster a stray.

The fact that they update their lost animal recording daily after 6 p.m. and keep it limited to recent arrivals means you’ll get fresh, relevant information without sifting through old listings—helpful when you’re anxious and need to act quickly.