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Lost Dogs Database for Boulder, CO

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

129 lost dogs in your search

Lost Female Dog last seen 72nd and Kalamath St, Denver, CO 80221

Reported 3 weeks ago

Pookie Female Dog

LOST PawBoost ID: 73538915


Denver, CO 80221

Boston terrier brindle/black/white

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Lost Male Dog last seen 91st & Huron, Thornton, CO 80260

Reported 1 month ago, updated 3 weeks ago

Zane Male Dog

LOST PawBoost ID: 73468753


Thornton, CO 80260

All white with some light brown spots on head.

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Lost Male Dog last seen 120th dutch bros, canes, Thornton, CO 80233

Reported 3 weeks ago

Kong Male Dog

LOST PawBoost ID: 73538237


Thornton, CO 80233

grey pitbull with a white line on his face , yellow reddish nose

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Lost Female Dog last seen Brakes plus Firestone, Longmont, CO 80504

Reported 3 weeks ago

Lady Female Dog

LOST PawBoost ID: 73533909


Longmont, CO 80504

Red border collie and her name is Lady

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Lost Female Dog last seen Thornton y 100, Thornton, CO 80229

Reported 4 weeks ago

Stormi Female Dog

LOST PawBoost ID: 73530538


Thornton, CO 80229

con canitas blancas

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Lost Male Dog last seen North Pecos and 92nd, Thornton, CO 80260

Reported 4 weeks ago

Canelo Male Dog

LOST PawBoost ID: 73525825


Thornton, CO 80260

Golden

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Lost Male Dog last seen 16th and Julian st denver co, Denver, CO 80204

Reported 2 months ago, updated 4 weeks ago

Mj Male Dog

LOST PawBoost ID: 73324728


Denver, CO 80204

11yr old pitbul husky mix...more silver in the black areas as he is older now...he was registered as found on May 11 2026 under pawboost near 16th and julian...any information would greatly be appreciated as he has a whole family looking for high hopes of finding him...

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Lost Male Dog last seen Na, Lafayette, CO 80026

Reported 1 month ago, updated 1 month ago

Chiquitín Male Dog

LOST PawBoost ID: 73502446


Lafayette, CO 80026

Chiquitín un chihuahua

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Lost Female Dog last seen 4th & Spruce, Boulder, CO 80302

Reported 1 month ago

Pixel Female Dog

LOST PawBoost ID: 73506083


Boulder, CO 80302

Papillon Chihuahua with reddish-brown spots on a white coat

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Lost Female Dog last seen Corner on Lincoln Street and 49th Ave, Denver, CO 80216

Reported 4 months ago, updated 1 month ago

Morita Female Dog

LOST PawBoost ID: 73100256


Denver, CO 80216

Australian Cattle Dog. Black, white, and tan female dog, medium-sized, friendly face. White stripe down the center of her nose, tan eyebrows and cheeks, mostly black back. Floppy ears, medium-length snout, white speckled legs.

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Lost Female Dog last seen Quebec st and E 81st PL, Commerce City, CO 80022

Reported 1 month ago

Pebbles Female Dog

LOST PawBoost ID: 73504378


Commerce City, CO 80022

Female Blue Heeler puppy, tan-colored, with a short tail and a pink collar.

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Lost Male Dog last seen 70th and Broadway, Denver, CO 80221

Reported 1 month ago

Paul's Dog Male Dog

LOST PawBoost ID: 73501951


Denver, CO 80221

Soft, Fluffy, Light colored.

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Lost Female Dog last seen Longmont public library or king soopers on pace st, Longmont, CO 80501

Reported 4 months ago, updated 1 month ago

Indigo Female Dog

LOST PawBoost ID: 73177549


Longmont, CO 80501

She is half chihuahua and half terrier, she is very skittish and doesn't play well with other dogs. She doesn't really play fetch but if you play with her she will pretend to eat your hand. She is also hse broken and has been trained well. She also likes to go for walks but she really loves it when you run with outside. She alo doesn't like baths but she will sit in the bathtub and tolerate it until you're done. Let her come to you, she is a really sweet girl. She is light Brown and has a bit of white. she loves Being in people's laps for attention she Is also 7 years old and will be 8 on October 20th.

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Lost Male Dog last seen Suncore, Commerce City, CO 80022

Reported 1 month ago

ARCHie Male Dog

LOST PawBoost ID: 73497324


Commerce City, CO 80022

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Lost Female Dog last seen Lamar co subway, Arvada, CO 80003

Reported 1 month ago

Bella Female Dog

LOST PawBoost ID: 73495752


Arvada, CO 80003

Shitzu White with dark spots

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Lost Male Dog last seen Conifer rd, Denver, CO 80221

Reported 1 month ago, updated 1 month ago

Lucas Male Dog

LOST PawBoost ID: 73487570


Denver, CO 80221

Wearing a blue harness but no collar

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Lost Female Dog last seen Lakewood co 80226, Lakewood, CO 80226

Reported 1 month ago

Sacha Female Dog

LOST PawBoost ID: 73494981


Lakewood, CO 80226

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Lost Female Dog last seen Kennedy and Huron, Northglenn, CO 80234

Reported 1 month ago, updated 1 month ago

Lady B Female Dog

LOST PawBoost ID: 73461805


Northglenn, CO 80234

Light brown with some white spots

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Lost Male Dog last seen Near Adventure Elementary playground., Denver, CO 80221

Reported 1 month ago, updated 1 month ago

Lucas Male Dog

LOST PawBoost ID: 73471444


Denver, CO 80221

White with a little brown

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Lost Female Dog last seen Harlan. And 80th, Arvada, CO 80003

Reported 1 month ago, updated 1 month ago

Luna Female Dog

LOST PawBoost ID: 73470812


Arvada, CO 80003

She a tan Chihuahua she goes by Luna

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Lost Dog Data for Boulder, CO

There are 129 lost dogs in Boulder, CO.

Find Local Dog Shelters in Boulder, CO

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 Boulder?

With our free tools and premium add-on services, PawBoost helps lost dog owners find their furry loved ones – 2,354,132 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 Boulder 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 Boulder, CO?

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 Boulder area. Millions of pet lovers have signed up for our local lost & found pet alerts, and that includes pet lovers near Boulder!

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.