Lost Dogs & Cats in Ontario, CA
Recent lost and found dogs, cats and other pets reported in Ontario, CA, newest first.
PetAmberAlert.com has 3 active lost and found pet listings in Ontario, CA right now: 2 dogs and 1 cat. The newest was posted July 4, 2026. The most listings come from ZIP codes 91764 and 91762.
Searching in Ontario: California shelters are run by many separate cities and counties, so a pet can end up at a shelter outside your own town. Check every shelter within driving distance, and in foothill and canyon areas keep cats inside, as coyotes are active at dawn and dusk.
Shelters to check near Ontario
- San Bernardino County Animal Care: shelters for San Bernardino County.
- Riverside County Department of Animal Services: shelters across Riverside County.
Shelter hours and rules change, so check the shelter’s website or call before you go. Bring a photo of your pet and your ID. A pet can end up at a shelter in a nearby city or county, so check every shelter near where your pet was last seen, and visit in person.
Recent lost & found pets in Ontario, CA
Other places in California
- Los Angeles 33
- Redding 10
- Riverside 9
- San Jose 9
- Torrance 9
- Bakersfield 8
- Fresno 8
- San Diego 8
- Sacramento 7
- Fontana 6
- Huntington Beach 6
- Lake Elsinore 5
- Perris 5
- Salinas 5
- Anaheim 4
- Hesperia 4
- Lancaster 4
- Oceanside 4
- San Bernardino 4
- Santa Ana 4
- South Gate 4
- Chula Vista 3
- Costa Mesa 3
- Downey 3
- Escondido 3
- Hawthorne 3
- Irvine 3
- North Hills 3
- Oakland 3
- Palmdale 3
- Pomona 3
- Rialto 3
- Simi Valley 3
- Sun Valley 3