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Lost Dogs Database for Rialto, CA

Search lost and found dogs, as well as other pets, in the Rialto area with PawBoost.

780 lost dogs in your search

Lost Female Dog last seen Washington st meadow lane and Cooley ln, Colton, CA 92324

Reported 1 week ago, updated 5 days ago

Bella Female Dog

LOST PawBoost ID: 72934835


Colton, CA 92324

Tanish and white she has a white spot on top of her head she’s friendly weights about 12 lbs

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Lost Female Dog last seen Mt.Vernon Ave/ La Cadena, Colton, CA 92324

Reported 4 weeks ago, updated 5 days ago

Tiny Female Dog

LOST PawBoost ID: 72858269


Colton, CA 92324

Shes black on top and brown undercoat

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Lost Female Dog last seen Cadmium Court and Sapphire Road, Chino Hills, CA 91709

Reported 5 years ago, updated 5 days ago

Roxy Female Dog

LOST PawBoost ID: 66773505


Chino Hills, CA 91709

!2 year old Boxer mix, muzzle graying with age, wearing an orange web collar and red, white & black plaid sweater. She got out of the garage. Not used to being outside in the cold and wet weather. Has some medical issues.

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Lost Female Dog last seen Cynthia Street Pomona, Pomona, CA 91766

Reported 1 year ago, updated 5 days ago

Kiara Female Dog

LOST PawBoost ID: 71105409


Pomona, CA 91766

Pitbull black and white. Red collar. Friendly with people.

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Lost Male Dog last seen Crestview and 20th street , San Bernardino, CA 92404

Reported 8 months ago, updated 5 days ago

Puggy Male Dog

LOST PawBoost ID: 72139166


San Bernardino, CA 92404

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Lost Male Dog last seen Paws Park , Perris Ca , Perris, CA 92571

Reported 3 months ago, updated 5 days ago

Lucas Male Dog

LOST PawBoost ID: 72648958


Perris, CA 92571

Black with Underbite

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Lost Male Dog last seen Central and Poppy Rd, Apple Valley, CA 92308

Reported 2 weeks ago, updated 5 days ago

Bobo Male Dog

LOST PawBoost ID: 72911340


Apple Valley, CA 92308

17 year old all white multipoo

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Lost Male Dog last seen Sterling avenue, San Bernardino, CA 92404

Reported 1 year ago, updated 6 days ago

Moggie Male Dog

LOST PawBoost ID: 71186743


San Bernardino, CA 92404

10 years old 10 long hair Chihuahua

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Lost Male Dog last seen Sycamore and hollyvale ave, Victorville, CA 92392

Reported 2 months ago, updated 6 days ago

Frederick Male Dog

LOST PawBoost ID: 72741867


Victorville, CA 92392

Black lab mix blue collar

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Lost Male Dog last seen camino real and limonite  jurupa Valley , Riverside, CA 92509

Reported 1 month ago, updated 6 days ago

Chubb Male Dog

LOST PawBoost ID: 72819245


Riverside, CA 92509

senior med/small sized black and white dog . face is almost completely white. chest is red and white and leg on right side is red.

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Lost Male Dog last seen Kendall Drive , San Bernardino, CA 92407

Reported 4 weeks ago, updated 6 days ago

Moo Moo Male Dog

LOST PawBoost ID: 72850098


San Bernardino, CA 92407

Shih Tzhu Black and white Spotted

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Lost Female Dog last seen Park Ave. & comer , Riverside, CA 92502

Reported 7 months ago, updated 6 days ago

Belle Female Dog

LOST PawBoost ID: 72218953


Riverside, CA 92502

Pomerian mix

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Lost Female Dog last seen Juniper Ave, Fontana, CA 92335

Reported 6 days ago

Cookie Female Dog

LOST PawBoost ID: 72940192


Fontana, CA 92335

Little fluffy chihuahua white dog

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Lost Female Dog last seen Pacific , San Bernardino, CA 92410

Reported 2 months ago, updated 6 days ago

Reina Female Dog

LOST PawBoost ID: 72744922


San Bernardino, CA 92410

Grayw white patch on chest

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Lost Female Dog last seen Cole and van buren, Riverside, CA 92508

Reported 1 week ago, updated 6 days ago

Chica Female Dog

LOST PawBoost ID: 72931300


Riverside, CA 92508

Brown fully pink collar with flowers

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Lost Male Dog last seen Perris, Perris, CA 92572

Reported 6 days ago

Max Male Dog

LOST PawBoost ID: 72940068


Perris, CA 92572

Like maltis

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Lost Female Dog last seen Wells st, Riverside, CA 92503

Reported 3 months ago, updated 6 days ago

Lucy Female Dog

LOST PawBoost ID: 72651949


Riverside, CA 92503

Black n tan with graying

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Lost Male Dog last seen Euclid and Holt,  Ontario, Ontario, CA 91761

Reported 6 days ago

Jerry Male Dog

LOST PawBoost ID: 72939742


Ontario, CA 91761

Chihuahua with collar. Last seen May 4th, 2026. Owner is heartbroken 💔

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Lost Female Dog last seen Old ranch rd and Cooley lane , Colton, CA 92324

Reported 1 week ago, updated 6 days ago

Bella Female Dog

LOST PawBoost ID: 72930159


Colton, CA 92324

Tan color with a white diamond shape on top of her head

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Lost Female Dog last seen Ardella apts , Moreno Valley, CA 92553

Reported 1 week ago, updated 6 days ago

Bostwick Female Dog

LOST PawBoost ID: 72929541


Moreno Valley, CA 92553

View Pet

Lost Dog Data for Rialto, CA

There are 780 lost dogs in Rialto, CA.

Find Local Dog Shelters in Rialto, CA

PawBoost has communities of dog-lovers across the country and beyond that help find missing dogs, and that means partnerships with dog shelters in the US and in Canada.

Are you a team member at a shelter not yet partnered with PawBoost?

Request Shelter Partnership

Find Your Dog Sooner with PawBoost

When you have a missing dog, it can be difficult to know what to do in the moment.

How do I find my dog? Do I have to visit the dog shelters in my area in person, or is it okay to just call? How can I get the word out to my local community in Rialto?

With our free tools and premium add-on services, PawBoost helps lost dog owners find their furry loved ones – 2,228,971 pets reunited and counting!

Find your lost dog faster with PawBoost.

Report Lost Dog

Frequently Asked Questions

I lost my dog. What should I do?

Take advantage of online platforms – they help you get the word out, quickly and easily. You can report your lost dog to PawBoost in no time flat. We'll send an email alert to our local members, post to the PawBoost-powered Facebook page for your area, add your dog to our lost & found, and make a lost dog flyer – all for free.

Other sites that help you raise local awareness for your lost dog with minimal time and effort are Nextdoor.com – a PawBoost partner – and Craigslist. Both of these sites have very active lost & found sections mainly used for lost pets. We highly recommend you use these resources in addition to PawBoost!

Visit your local shelters and animal control agencies in person. Details can get lost in translation over the phone and that might lead to missed connection.

If chipped, make sure your dog's microchip is registered and up to date. If you don't know your pet's chip manufacturer or number, your vet should be able to help locate this information.

Put up flyers and tell your neighbors to be on the lookout. The more you engage the Rialto community, the better your chances of a happy reunion!

Read our full guide on how to find your lost dog for more actionable tips.

Where do I report a lost dog in Rialto, CA?

If you lost a dog, we would like to help. You can report a lost dog to PawBoost for free to help find your dog in the Rialto area. Millions of pet lovers have signed up for our local lost & found pet alerts, and that includes pet lovers near Rialto!

Do I have to pay for premium PawBoost services to find my lost dog?

You don't have to pay to find your lost pet with PawBoost. PawBoost's free dog finder services have helped millions of people reunite with their lost dogs.

PawBoost does offer premium upgrades to help increase the reach of your lost pet alert.

You can learn more about what free and premium services PawBoost offers here.