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Lost Pets Database for Costa Mesa, CA

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

1808 lost pets in your search

Lost Male Cat last seen Stanford Ave. & Magnolia St., Garden Grove, CA 92841

Reported 3 weeks ago, updated 3 days ago

Blue Boy Male Cat

LOST PawBoost ID: 73337451


Garden Grove, CA 92841

Solid grey, gold/yellow eyes (a bit green ish in some lights)

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Lost Female Cat last seen I’m located towards main and Washington. But the whole entire neighborhood (surgeon), Santa Ana, CA 92701

Reported 4 months ago, updated 3 days ago

Tigress Female Cat

LOST PawBoost ID: 72973295


Santa Ana, CA 92701

Age: 6 (turns 7 this year 2026) Fur pattern/color: Tabby pattern (black, brown, and some white) Eye color: Green Special features. She has this little black dot on her certain of the nose. She does carry a pouch with her (her belly) *She is spayed*

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Lost Male Bird last seen Abbott Rd. & Atlantic Blvd., Lynwood, CA (Right next to El Super), Lynwood, CA 90280

Reported 2 months ago, updated 3 days ago

Leo Male Bird

LOST PawBoost ID: 73220900


Lynwood, CA 90280

He is a normal grey male cockatiel. He has a light scar above his nail on his right foot and recently had his nails trimmed. He also has a white feather (like a birthmark) on the right side of his neck.

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

Reported 6 years ago, updated 3 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 Male Dog last seen Norwalk Blvd and Excelsior, Norwalk, CA 90650

Reported 5 months ago, updated 3 days ago

Cosmo Male Dog

LOST PawBoost ID: 72818616


Norwalk, CA 90650

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Lost Female Cat last seen Alicia Parkway and Jeronimo Rd., Mission Viejo, CA 92691

Reported 5 months ago, updated 3 days ago

Waffles Female Cat

LOST PawBoost ID: 72828207


Mission Viejo, CA 92691

Grey and white tuxedo with white belly and white paws.

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Lost Male Dog last seen Near w Heath st Long Beach, Long Beach, CA 90805

Reported 5 days ago, updated 3 days ago

Papi Male Dog

LOST PawBoost ID: 73405279


Long Beach, CA 90805

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Lost Female Cat last seen Broadway between Alamitos Ave and Bonito Ave, Long Beach, CA 90802

Reported 1 year ago, updated 3 days ago

Duckie Female Cat

LOST PawBoost ID: 71473049


Long Beach, CA 90802

Duckie is light brown with dark brown and white markings, white paws, blue eyes and a pink nose. She has a brown "soul patch" on her chin. She is spayed and microchipped.

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Lost Female Cat last seen Belle porte ave &255 st, Los Angeles, CA 90710

Reported 1 week ago, updated 3 days ago

Michi Female Cat

LOST PawBoost ID: 73396298


Los Angeles, CA 90710

Brown tabby

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Lost Male Dog last seen McFadden and raitt, Santa Ana, CA 92704

Reported 2 weeks ago, updated 3 days ago

Galleta Male Dog

LOST PawBoost ID: 73374501


Santa Ana, CA 92704

White with brown paches

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Lost Male Dog last seen Shadow oak woodgate, West Covina, CA 91792

Reported 3 days ago

Mathew Medina Male Dog

LOST PawBoost ID: 73412986


West Covina, CA 91792

Brindle pitbull

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Lost Female Cat last seen Indus Street, Newport Beach, CA, Newport Beach, CA 92660

Reported 1 year ago, updated 3 days ago

Nuisance Female Cat

LOST PawBoost ID: 71883713


Newport Beach, CA 92660

5 1/2 lb. Female, all black except for tiny bit of white on her chest.

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Lost Female Dog last seen Murphy ranch park, Whittier, CA 90603

Reported 3 weeks ago, updated 3 days ago

Maya Female Dog

LOST PawBoost ID: 73349169


Whittier, CA 90603

Long haired light brown German shepherd

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Lost Male Bird last seen Near Irvine high, Irvine, CA 92620

Reported 3 days ago

Jay And Chickie Male Bird

LOST PawBoost ID: 73412331


Irvine, CA 92620

One is yellow and other one is black with white spots on its back and the baby bird has feathered wings with a unfeathered body

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Lost Male Cat last seen Nohl ranch, Anaheim, CA 92807

Reported 6 days ago, updated 3 days ago

Milo Male Cat

LOST PawBoost ID: 73402599


Anaheim, CA 92807

He’s a rag doll but we shaved him.

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Lost Male Cat last seen Rimhurst / Rimgate, Lake Forest, CA 92630

Reported 3 weeks ago, updated 3 days ago

Nelly Male Cat

LOST PawBoost ID: 73345449


Lake Forest, CA 92630

Domestic short hair tuxedo, white paws, white whiskers

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Lost Male Cat last seen Myron street and passons, Pico Rivera, CA 90660

Reported 1 month ago, updated 3 days ago

Pepino Male Cat

LOST PawBoost ID: 73294113


Pico Rivera, CA 90660

Domestic short hair black and white

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Lost Male Cat last seen Near Mulldae Acenue, Los Angeles, CA 90732

Reported 1 month ago, updated 3 days ago

Ollie Male Cat

LOST PawBoost ID: 73266584


Los Angeles, CA 90732

Orange tabby cat w/ no collar and pink paws

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Lost Female Dog last seen Rimpau and Spruce, Corona ,ca, Corona, CA 92882

Reported 2 years ago, updated 3 days ago

Blanca&baby Female Dog

LOST PawBoost ID: 71336968


Corona, CA 92882

White Siberian huskies, one has blue eyes the other has brown eyes. They are still missing as of 2/6/26

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Lost Male Cat last seen 6th and Quincy, Long Beach, CA 90814

Reported 5 months ago, updated 3 days ago

Rascal Male Cat

LOST PawBoost ID: 72861268


Long Beach, CA 90814

Grey and white tabby

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Lost Pet Data for Costa Mesa, CA

There are 1808 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?

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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 – 2,315,190 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.