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Lost Pets Database for Costa Mesa, CA

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

1706 lost pets in your search

Lost Female Cat last seen Alley between Ohio Ave & Molino Ave towards Skyline Drive, Signal Hill, CA 90755

Reported 3 weeks ago, updated 1 min ago

Blinkie Female Cat

LOST PawBoost ID: 73529850


Signal Hill, CA 90755

Siamese Cat White/Grey with Blue Eyes

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Lost Male Dog last seen E rosecrans ave, Compton, CA 90221

Reported 33 mins ago

Benito Male Dog

LOST PawBoost ID: 73618949


Compton, CA 90221

Little light brown on his ears

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Lost Female Cat last seen Richfield Road, Yorba Linda, CA 92886

Reported 10 months ago, updated 39 mins ago

Cleo Female Cat

LOST PawBoost ID: 72428577


Yorba Linda, CA 92886

Short haired tabby

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Lost Male Cat last seen Garfield Ave & Monroe Ave, South Gate, CA 90280

Reported 1 week ago, updated 1 hour ago

Zoro Male Cat

LOST PawBoost ID: 73587113


South Gate, CA 90280

Black/Brown medium long fur cat with yellow/green eyes.

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Lost Male Cat last seen Genoa Drive and West Lehnhardt Ave., Santa Ana, CA 92704

Reported 1 hour ago

Maverick Male Cat

LOST PawBoost ID: 73618754


Santa Ana, CA 92704

Orange and white cat, large sized with long hair, and answers to the name Maverick.

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Lost Male Dog last seen MAGNOLIA AND GERTRUDE, Lynwood, CA 90262

Reported 1 year ago, updated 2 hours ago

Jerry Male Dog

LOST PawBoost ID: 72095506


Lynwood, CA 90262

CHIHUAHUA-SHIH TZU MIX

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Lost Female Cat last seen Greenville & Edinger., Santa Ana, CA 92704

Reported 2 hours ago

Kitty Female Cat

LOST PawBoost ID: 73618471


Santa Ana, CA 92704

Grey & white kitty

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Lost Male Cat last seen Cerulean and Taylor, Garden Grove, CA 92845

Reported 12 months ago, updated 3 hours ago

Davy Male Cat

LOST PawBoost ID: 72291041


Garden Grove, CA 92845

Light gray with white on chest and white paws and an extra toe on both front paws ! Polysactyl . Super sweet and friendly but a bit shy at first . He will let you pick him up but probably not hold him for too long . He does not bite or scratch .

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Lost Female Cat last seen N Adair Pl, Anaheim, CA 92806

Reported 1 week ago, updated 3 hours ago

Luna Female Cat

LOST PawBoost ID: 73587477


Anaheim, CA 92806

Brown Tabby with Stripes

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Lost Male Cat last seen On Dolan Avenue cross street Borson or other direction Lyndora, Downey, CA 90242

Reported 6 months ago, updated 3 hours ago

Stick Tail Male Cat

LOST PawBoost ID: 72852703


Downey, CA 90242

Petite Male light gray tabby cat about seven months old very affectionate & friendly. Has an extra long thin tail. Has a pink nose. Does not meow but he does pur .Please let me know if you have seen him. He's been missing since May 3rd 2026.

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Lost Male Cat last seen St Gregory Catholic church, Whittier, CA 90604

Reported 3 hours ago

Bonnie Male Cat

LOST PawBoost ID: 73618112


Whittier, CA 90604

Yellow/tan and white color

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Lost Male Cat last seen The first turn in of ravello apmts, Aliso Viejo, CA 92656

Reported 2 months ago, updated 4 hours ago

Kings Male Cat

LOST PawBoost ID: 73327298


Aliso Viejo, CA 92656

Black and white

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Lost Female Cat last seen Hunt Ter. Gated Community, Los Angeles, CA 90710

Reported 4 hours ago

Corinne Female Cat

LOST PawBoost ID: 73617865


Los Angeles, CA 90710

Brown Tabby with big fat tail with black rings. Belly is orange brown.

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Lost Female Cat last seen Chapman and Brookhust near Faylane Elementary, Garden Grove, CA 92840

Reported 4 months ago, updated 4 hours ago

Grimm Female Cat

LOST PawBoost ID: 73101965


Garden Grove, CA 92840

Spayed 9 yr old female, fluffy medium haired tortiseshell colored cat with orange nose on the left.

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Lost Female Cat last seen Delamo and lakewood blvd, Lakewood, CA 90712

Reported 4 months ago, updated 4 hours ago

Nala Female Cat

LOST PawBoost ID: 73138659


Lakewood, CA 90712

Has a a lick spot from stressing of the move on her back leg.

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Lost Female Cat last seen Windsong and Aliso Creek, Aliso Viejo, CA 92656

Reported 2 months ago, updated 4 hours ago

Stinky Female Cat

LOST PawBoost ID: 73340785


Aliso Viejo, CA 92656

Tuxedo cat, 4 white feet, small moustache

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Lost Male Dog last seen Alondra and ward, Compton, CA 90221

Reported 4 hours ago

Opie Male Dog

LOST PawBoost ID: 73617844


Compton, CA 90221

Grey with tan points

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Lost Male Dog last seen at Ponderosa and Lemon St., Costa Mesa, CA, Costa Mesa, CA 92626

Reported 8 months ago, updated 4 hours ago

Cosmo Male Dog

LOST PawBoost ID: 72633458


Costa Mesa, CA 92626

15 yo, Blind, Deaf Brindle Gray Tiny Shih Tzu. Needs eye . Missing right after Midnight 2/21. Reward $500

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Lost Pet Data for Costa Mesa, CA

There are 1706 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 – 2,350,588 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.