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Lost Pets Database for Costa Mesa, CA

Search lost and found pets in the Costa Mesa area with PawBoost.

1702 lost pets in your search

Lost Male Cat last seen Vermont and East, Anaheim, CA 92805

Reported 2 weeks ago

Vision Male Cat

LOST PawBoost ID: 73553890


Anaheim, CA 92805

Has a clipped ear.

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Lost Male Cat last seen By the back hses, San Juan Capistrano, CA 92675

Reported 1 month ago, updated 2 weeks ago

Jerry Male Cat

LOST PawBoost ID: 73455964


San Juan Capistrano, CA 92675

Brown, white, chunky

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Lost Male Cat last seen Walnut St, Fountain Valley, CA 92708

Reported 1 month ago, updated 2 weeks ago

Pepe Male Cat

LOST PawBoost ID: 73484777


Fountain Valley, CA 92708

He’s a 13 year old orange cat with white on his chest and face and paws.

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Lost Female Cat last seen Solana gym irvine company apmts, Irvine, CA 92614

Reported 2 weeks ago

Cleopatra Female Cat

LOST PawBoost ID: 73552955


Irvine, CA 92614

blue collar white pearl

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Lost Male Dog last seen Atlantic, Long Beach, CA 90806

Reported 4 weeks ago, updated 2 weeks ago

Boogie Male Dog

LOST PawBoost ID: 73503946


Long Beach, CA 90806

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Lost Female Dog last seen Shaffer and east Quincy avy, Orange, CA 92867

Reported 2 weeks ago

Mona Paez Female Dog

LOST PawBoost ID: 73552744


Orange, CA 92867

Beautiful brown colo white front hands

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Lost Female Cat last seen Chestnut st SantaAna, Santa Ana, CA 92707

Reported 4 months ago, updated 2 weeks ago

Chinchi rose Female Cat

LOST PawBoost ID: 73115762


Santa Ana, CA 92707

Calico female cat nuerter. Black brown on face white on stomach

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Lost Male Dog last seen Near Caro St Paramount, CA 90723 United States, Paramount, CA 90723

Reported 1 month ago, updated 2 weeks ago

Tokyo Male Dog

LOST PawBoost ID: 73484666


Paramount, CA 90723

Golden doodle, gold fur coat, just got a trim

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Lost Female Cat last seen Pacific Coast Highway between Coral Cay and Warner, Huntington Beach, CA 92649

Reported 4 months ago, updated 2 weeks ago

Aqua Female Cat

LOST PawBoost ID: 73175321


Huntington Beach, CA 92649

Siamese cat

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Lost Unknown Dog last seen Aphena and Helena Circle Mission Viejo, Mission Viejo, CA 92692

Reported 2 weeks ago

Unknown Unknown Dog

LOST PawBoost ID: 73552547


Mission Viejo, CA 92692

I just saw on social media this dog is lost!!! I’m posting here in case someone is missing thier dog in Mission Viejo! Please Go mission Viejo connection!!!!

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

Reported 4 months ago, updated 2 weeks ago

Pitbull Female Dog

LOST PawBoost ID: 73160187


Whittier, CA 90606

Black and white pitbull puppy

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Lost Male Dog last seen He got arrested with me by East St And La Palma ave, and was last at Oc Animal Care, Animal shelter in Tustin CA, Tustin, CA 92780

Reported 4 weeks ago, updated 2 weeks ago

Mattphewalvarez Male Dog

LOST PawBoost ID: 73500344


Tustin, CA 92780

He's All White with Blue Eyes & is A Red nose Pitbull mixed with a Wolf

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Lost Male Dog last seen Warren and orange, Long Beach, CA 90813

Reported 2 weeks ago

Mac Male Dog

LOST PawBoost ID: 73551783


Long Beach, CA 90813

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Lost Female Cat last seen Turtle Rock rd and ridgeline rd, Irvine, CA 92603

Reported 2 weeks ago

Aurora Female Cat

LOST PawBoost ID: 73551650


Irvine, CA 92603

Brown and black

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Lost Female Dog last seen Bellflower and adenmoor, Lakewood, CA 90713

Reported 2 weeks ago

Mimi Female Dog

LOST PawBoost ID: 73551381


Lakewood, CA 90713

Tan dog with underdite

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Lost Male Dog last seen Behind Starbucks and staterbros, Corona, CA 92879

Reported 2 weeks ago

Oliver Male Dog

LOST PawBoost ID: 73551091


Corona, CA 92879

He’s neutered he weighs exactly 5 pounds 4 when he hasn’t eaten he has no collar, no chip no tag. He gets anxious and aggressive around other animals and people, but he calm down when you call his name and pick him up without fear. He’s all brown and only has white on his chest. His paws are coffee brown. His eyes are hazel.

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Lost Male Cat last seen Newhope, Fountain Valley, CA 92708

Reported 4 months ago, updated 2 weeks ago

Tofu Male Cat

LOST PawBoost ID: 73127233


Fountain Valley, CA 92708

Cream and orange. Very sweet with a distinctive upturn of one ear.

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Lost Male Cat last seen Gaffey St, Los Angeles, CA 90731

Reported 1 month ago, updated 2 weeks ago

Spoony Male Cat

LOST PawBoost ID: 73490324


Los Angeles, CA 90731

Grey cat with green eyes. He has a microchip and is about five years old in 2026.

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Lost Unknown Reptile last seen Amar Road and Del Valle Ave, La Puente, CA 91744

Reported 2 months ago, updated 2 weeks ago

Bowser Unknown Reptile

LOST PawBoost ID: 73364826


La Puente, CA 91744

Sulcata Tortoise around 7-8 inches

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Lost Male Cat last seen 67th & Long Beach Blvd, LB, CA 90805, Long Beach, CA 90805

Reported 5 months ago, updated 2 weeks ago

Wildfire Male Cat

LOST PawBoost ID: 72940162


Long Beach, CA 90805

Short haired tuxedo Siamese 4yr & 7 months very affectionate & cuddly.

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Lost Pet Data for Costa Mesa, CA

There are 1702 lost pets in Costa Mesa, CA.

Find Local Pet Shelters in Costa Mesa, CA

PawBoost has communities of pet-lovers across the country and beyond that help find missing pets, and that means partnerships with pet 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 Pet Sooner with PawBoost

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

How do I find my pet? Do I have to visit the pet 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 pet owners find their furry loved ones – 2,351,044 pets reunited and counting!

Find your lost pet faster with PawBoost.

Report Lost Pet

Frequently Asked Questions

I lost my pet. What should I do?

Take advantage of online platforms – they help you get the word out, quickly and easily. You can report your lost pet 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 pet to our lost & found, and make a lost pet flyer – all for free.

Other sites that help you raise local awareness for your lost pet 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 pet'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 pet for more actionable tips.

Where do I report a lost pet in Costa Mesa, CA?

If you lost a pet, we would like to help. You can report a lost pet to PawBoost for free to help find your pet 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 pet?

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

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.