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Lost Pets Database for Costa Mesa, CA

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

1809 lost pets in your search

Lost Female Cat last seen Cristalino st and montellano st, Hacienda Heights, CA 91745

Reported 2 months ago, updated 3 weeks ago

Nala Female Cat

LOST PawBoost ID: 73240677


Hacienda Heights, CA 91745

All black and some white on chest

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Lost Female Cat last seen Beach and Hillsborough, La Mirada, CA 90638

Reported 3 weeks ago

Dalkom Female Cat

LOST PawBoost ID: 73350663


La Mirada, CA 90638

17lbs. White and brown

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Lost Female Dog last seen Wilmington & 139th st, Compton, CA 90222

Reported 3 weeks ago

Stormi Female Dog

LOST PawBoost ID: 73350530


Compton, CA 90222

View Pet

Lost Male Cat last seen Orange Ave. / Plymouth St., Long Beach, CA 90805

Reported 2 months ago, updated 3 weeks ago

Henry (prince) Male Cat

LOST PawBoost ID: 73234087


Long Beach, CA 90805

White with Pink feet and Nose ( 7 Years )

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Lost Male Cat last seen Warner and goldenwest, Huntington Beach, CA 92647

Reported 3 weeks ago

Kitters Male Cat

LOST PawBoost ID: 73350344


Huntington Beach, CA 92647

14 month old orange tabby

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Lost Female Dog last seen rorimer elementary, La Puente, CA 91744

Reported 3 weeks ago, updated 3 weeks ago

nina Female Dog

LOST PawBoost ID: 73350278


La Puente, CA 91744

View Pet

Lost Male Dog last seen The Pike, Long Beach California, Long Beach, CA 90831

Reported 3 months ago, updated 3 weeks ago

Dior Male Dog

LOST PawBoost ID: 73021635


Long Beach, CA 90831

German Spitz, white and brown spots on his ears

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Lost Female Cat last seen Blackwood St in between echelon and greycliff, La Puente, CA 91744

Reported 2 months ago, updated 3 weeks ago

Quasi Female Cat

LOST PawBoost ID: 73189659


La Puente, CA 91744

Diluted calico with tabby markings, 4 years old, unspayed

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Lost Male Dog last seen Chapman ave, Garden Grove, CA 92840

Reported 1 month ago, updated 3 weeks ago

Coco Male Dog

LOST PawBoost ID: 73295292


Garden Grove, CA 92840

He has kinda brown spots

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Lost Male Cat last seen Elaine Ave, Norwalk, CA 90650

Reported 4 weeks ago, updated 3 weeks ago

Little Sir Male Cat

LOST PawBoost ID: 73313944


Norwalk, CA 90650

Brown cat with brown markings and green eyes with a long fluffy tail

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Lost Male Cat last seen Park Newport, Newport Beach, CA 92660

Reported 3 weeks ago, updated 3 weeks ago

Sylvester Male Cat

LOST PawBoost ID: 73340044


Newport Beach, CA 92660

Black and white cat fluffy right ear is snipped

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Lost Male Cat last seen La Palma and Via Lomas de Yorba, Yorba Linda, CA 92887

Reported 3 weeks ago, updated 3 weeks ago

Cooper Male Cat

LOST PawBoost ID: 73340106


Yorba Linda, CA 92887

All black

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Lost Female Cat last seen By park grove area, Garden Grove, CA 92844

Reported 3 weeks ago

Mika Female Cat

LOST PawBoost ID: 73347913


Garden Grove, CA 92844

Stripes on back, spots on stomach

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Lost Male Cat last seen Veterans park, Chino Hills, CA 91710

Reported 1 year ago, updated 3 weeks ago

Stinky Male Cat

LOST PawBoost ID: 71502193


Chino Hills, CA 91710

Tabby Cat with a white patch of fur down his chest One of his front paws has a half brown and half pink paw color

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Lost Female Dog last seen Biola and greeworth, La Mirada, CA 90638

Reported 3 months ago, updated 3 weeks ago

Betty Female Dog

LOST PawBoost ID: 73099221


La Mirada, CA 90638

Tan pekinese

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Lost Male Bird last seen south gate park, South Gate, CA 90280

Reported 3 weeks ago

Lucky Male Bird

LOST PawBoost ID: 73347562


South Gate, CA 90280

soft orange cheeks and light yellow head ! skinny. I picked him because I felt like he looked pretty unique with his light pastel feathers.

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Lost Male Cat last seen Walnut, Edinger, Tustin, CA 92782

Reported 3 weeks ago, updated 3 weeks ago

Tigger Male Cat

LOST PawBoost ID: 73339176


Tustin, CA 92782

Orange tabby

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Lost Male Cat last seen Gage/Greenwood, Bell Gardens, CA 90201

Reported 4 weeks ago, updated 3 weeks ago

Mochi Male Cat

LOST PawBoost ID: 73310768


Bell Gardens, CA 90201

My son's cat Mochi, has been missing since 8/7/2026

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Lost Male Dog last seen Long Beach Blvd. & K St., Compton, CA 90220

Reported 1 month ago, updated 3 weeks ago

Thumper Male Dog

LOST PawBoost ID: 73258430


Compton, CA 90220

long nails

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Lost Male Dog last seen Fullerton hills, Fullerton, CA 92833

Reported 3 weeks ago

Toby Male Dog

LOST PawBoost ID: 73346528


Fullerton, CA 92833

View Pet

Lost Pet Data for Costa Mesa, CA

There are 1809 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 – 2,315,330 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.