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Lost Dogs Database for Costa Mesa, CA

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

556 lost dogs in your search

Lost Male Dog last seen Haster, Anaheim, CA 92840

Reported 1 day ago

Black Jack Male Dog

LOST PawBoost ID: 73162650


Anaheim, CA 92840

Black skinny and tall

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Lost Male Dog last seen Bullis Rd and Palm Ave, Lynwood, CA 90262

Reported 3 days ago, updated 1 day ago

Mylo Male Dog

LOST PawBoost ID: 73154787


Lynwood, CA 90262

Brown with white in the chest

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Lost Male Dog last seen Avenida Del Mar San Clemente, San Clemente, CA 92672

Reported 8 months ago, updated 1 day ago

Juju Male Dog

LOST PawBoost ID: 72278376


San Clemente, CA 92672

Black Terrier Chihuahua mix

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Lost Male Dog last seen Bellflower and Alondra Ave, Bellflower, CA 90706

Reported 1 day ago

Stitch Male Dog

LOST PawBoost ID: 73161909


Bellflower, CA 90706

Gray French bull dog, a limp walk and rash marks on his back.

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Lost Male Dog last seen E San Luis St & N Harris Ave, Close to Compton Blvd, Compton, CA 90221

Reported 2 days ago

Canelo Male Dog

LOST PawBoost ID: 73161321


Compton, CA 90221

LIGHT BROWN/BEIGE MIXED CHIHUAHUA, ~12lbs, PARTIALLY BLIND SENIOR DOG, HIDES UNDER CARS/HIDDEN CREVICES, GETS DISORIENTED WITH LOUD NOISES.

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Lost Female Dog last seen Blinn and PCH, Los Angeles, CA 90744

Reported 3 weeks ago, updated 2 days ago

Manda Female Dog

LOST PawBoost ID: 73077695


Los Angeles, CA 90744

Grey Pitbull Female White Spot on Belly and White spotted Back Leg Paws

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Lost Male Dog last seen Ocean Blvd and cherry, Long Beach, CA 90814

Reported 2 days ago, updated 2 days ago

Benji Male Dog

LOST PawBoost ID: 73158551


Long Beach, CA 90814

Light brown

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Lost Male Dog last seen N La Loma Cir, Anaheim, CA 92806

Reported 4 days ago, updated 2 days ago

Coco Male Dog

LOST PawBoost ID: 73153723


Anaheim, CA 92806

Dark gray and white fur, small dog, black eyes, fluffy fur, about one feet tall

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Lost Male Dog last seen Tillman and Denwall, Carson, CA 90746

Reported 1 year ago, updated 2 days ago

** Male Dog

LOST PawBoost ID: 71211470


Carson, CA 90746

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Lost Female Dog last seen Pomering Rd & Hondo, Downey, CA 90242

Reported 2 days ago

GURL (GIRL) Female Dog

LOST PawBoost ID: 73160494


Downey, CA 90242

Blond / White. older girl now, she walks slow may be scared for one to get near her. s

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Lost Male Dog last seen Fairhope, La Mirada, CA 90638

Reported 1 week ago, updated 2 days ago

Simba Male Dog

LOST PawBoost ID: 73131484


La Mirada, CA 90638

He’s light brown and he’s a bit old has a green collar

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Lost Female Dog last seen 55th St, Long Beach Blvd, Long Beach, CA 90805

Reported 2 days ago

Cookie Female Dog

LOST PawBoost ID: 73160389


Long Beach, CA 90805

Brown Chihuahua

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Lost Female Dog last seen Carlin and Waldorf, Lynwood, CA 90262

Reported 4 days ago, updated 2 days ago

Zoey Female Dog

LOST PawBoost ID: 73151927


Lynwood, CA 90262

Brown goldendoodle she doesn’t have on a collar.

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Lost Male Dog last seen McFadden, Santa Ana, CA 92701

Reported 4 days ago, updated 2 days ago

Oliver Male Dog

LOST PawBoost ID: 73152677


Santa Ana, CA 92701

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Lost Female Dog last seen Washington and Norwalk blvd, Whittier, CA 90606

Reported 2 days ago

Pitbull Female Dog

LOST PawBoost ID: 73160187


Whittier, CA 90606

Black and white pitbull puppy

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Lost Female Dog last seen Washington and Norwalk blvd, Whittier, CA 90606

Reported 2 days ago

Pitbull Female Dog

LOST PawBoost ID: 73160123


Whittier, CA 90606

Black and white pitbull puppy she is really playful her name is

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Lost Female Dog last seen Mulberry and Mills, Burrito Track, Whittier, CA 90605

Reported 2 months ago, updated 2 days ago

Schwi Female Dog

LOST PawBoost ID: 72956305


Whittier, CA 90605

Missing Dog Description: Small senior female Chihuahua–Poodle mix, approximately 11 years old, black-and-tan coloring with lighter tan/cream on her face, chest, and legs. She has a small build, scruffy/wiry fur, and may look older or thinner than the photos. She was last seen wearing a cone and a black sock/bandage over an injury or allergy-related mass on her left side, though those may have come off by now. She also has a bad tooth and is missing one , which she has been missing since she was a puppy.

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Lost Male Dog last seen OC fairgrounds, Costa Mesa, CA 92626

Reported 2 weeks ago, updated 2 days ago

Champ Male Dog

LOST PawBoost ID: 73122190


Costa Mesa, CA 92626

Black chihuahua with white spots on face

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Lost Female Dog last seen Wilimington, Compton, CA 90220

Reported 2 days ago

Purple Female Dog

LOST PawBoost ID: 73159164


Compton, CA 90220

Fawn gray

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Lost Male Dog last seen Supposedly went to a location with nurses, Long Beach, CA 90806

Reported 1 year ago, updated 2 days ago

Maka Male Dog

LOST PawBoost ID: 71811028


Long Beach, CA 90806

White husky 3 years old this month July 2025, blue eyes, pink nose.beyond friendly and always energetic. He thinks everyone and everything is his friend. 🤦🏽‍♀️

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Lost Dog Data for Costa Mesa, CA

There are 556 lost dogs in Costa Mesa, CA.

Find Local Dog Shelters in Costa Mesa, 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 Costa Mesa?

With our free tools and premium add-on services, PawBoost helps lost dog owners find their furry loved ones – 2,268,457 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 Costa Mesa 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 Costa Mesa, 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 Costa Mesa area. Millions of pet lovers have signed up for our local lost & found pet alerts, and that includes pet lovers near Costa Mesa!

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.