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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.

150 lost dogs in your search

Lost Female Dog last seen Lamar, Wheat Ridge, CO 80033

Reported 2 hours ago

Cookie Female Dog

LOST PawBoost ID: 72964559


Wheat Ridge, CO 80033

Brown

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Lost Male Dog last seen Near th and devonshire thornton co80229, Thornton, CO 80229

Reported 8 hours ago

Roscoe Male Dog

LOST PawBoost ID: 72962938


Thornton, CO 80229

Mostly white with black pointed ears that stand up and under white wiry hair is black dots on skin

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Lost Female Dog last seen E 51st Ave and Central Park Blvd, Denver, CO 80238

Reported 1 week ago, updated 9 hours ago

Wolfie Female Dog

LOST PawBoost ID: 72932007


Denver, CO 80238

Female Siberian Husky - Black and White. She is very friendly and rarely barks or howls unless she sees a leash (which she was wearing when she went missing). She will usually come when called, especially if you have a slice of ham! We have video of her being taken by two good Samaritans, but we do not have their information, other than a possible name: Abraham Soto. I have included pictures of the two humans who likely have her at the top of her photo.

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Lost Male Dog last seen Near the alley at 29th Ave between Adams and Steele St. , Denver, CO 80205

Reported 17 hours ago

Chance Male Dog

LOST PawBoost ID: 72961026


Denver, CO 80205

Name: Chance Senior (11 yrs), black and white mixed breed, looks like husky/blue heeler mix. Medium sized, and is fixed.

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Lost Male Dog last seen E 100th Ave and Colorado , Thornton, CO 80229

Reported 1 week ago, updated 1 day ago

Cucho Male Dog

LOST PawBoost ID: 72922389


Thornton, CO 80229

Brown long haired Chihuahua

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Lost Female Dog last seen Easy pawn in Lakewood , Denver, CO 80204

Reported 3 weeks ago, updated 1 day ago

Foxy Female Dog

LOST PawBoost ID: 72883477


Denver, CO 80204

Light brown

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Lost Male Dog last seen Carter Lake, Loveland, CO 80537

Reported 1 week ago, updated 1 day ago

Scout Male Dog

LOST PawBoost ID: 72928499


Loveland, CO 80537

Tri color mini Aussie

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Lost Female Dog last seen The Corner , Boulder, CO 80302

Reported 1 day ago

Nora Female Dog

LOST PawBoost ID: 72957777


Boulder, CO 80302

Black miniature Australian Sheppard

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Lost Female Dog last seen Clear creek trails, Berkley, CO 80212

Reported 2 months ago, updated 2 days ago

Remy Female Dog

LOST PawBoost ID: 72784377


Berkley, CO 80212

Very skittish, Black and white pointer mix last seen wearing a blue collar and black harness. Last seen at 56th and Zuni in Berkeley Heights.

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Lost Male Dog last seen E First St and South County Road 9e (near Simpson Ponds) Loveland, Colorado, Loveland, CO 80537

Reported 1 year ago, updated 2 days ago

Dozzer Male Dog

LOST PawBoost ID: 71324360


Loveland, CO 80537

80 lbs. Black lab mix with white diamond on chest . Wearing red nylon collar with tags at the time .He is microchipped.

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Lost Male Dog last seen Near Marshall St, Arvada, CO 80002, Arvada, CO 80002

Reported 2 weeks ago, updated 2 days ago

Ram Male Dog

LOST PawBoost ID: 72916262


Arvada, CO 80002

Black and brown weener dog

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Lost Female Dog last seen Near E Midway Blvd, Denver, CO 80234 Lote 310, Denver, CO 80234

Reported 5 days ago, updated 2 days ago

Kiara Female Dog

LOST PawBoost ID: 72944484


Denver, CO 80234

Perrita pequeña y peluda blanca

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Lost Male Dog last seen E 84th Ave Denver Colorado Rainbow and 84th , Denver, CO 80229

Reported 11 months ago, updated 3 days ago

Makai Male Dog

LOST PawBoost ID: 71818628


Denver, CO 80229

Brown and white thick fur , growing his little baby teeth in (has the bottom and top mostly busy still growing in)

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Lost Male Dog last seen Near Marshall st Arvada Colorado 80002, Arvada, CO 80002

Reported 2 weeks ago, updated 3 days ago

Ram Male Dog

LOST PawBoost ID: 72916254


Arvada, CO 80002

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Lost Male Dog last seen Floyd Hill Area, cross streets Hwy40 & Floyd Hill Way, Evergreen, CO 80439

Reported 1 year ago, updated 3 days ago

Cabo Male Dog

LOST PawBoost ID: 71368262


Evergreen, CO 80439

Red Miniature Dachshund. 13 years old. He has a couple broken toe nails. On the right lateral rib cage he has a small hair discoloration and lump. He has a crooked tail. He is graying in the face and front paws.

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Lost Male Dog last seen West 11th Ave and Rogers Street , Golden, CO 80401

Reported 3 months ago, updated 3 days ago

Bandit Male Dog

LOST PawBoost ID: 72681398


Golden, CO 80401

Small Black and White Chihuahua

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Lost Male Dog last seen 93rd, Federal Heights, CO 80260

Reported 6 days ago, updated 3 days ago

Enano Male Dog

LOST PawBoost ID: 72940496


Federal Heights, CO 80260

Withe, Pomerania, male, 1 year old

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Lost Male Dog last seen 88th and York, Thornton, CO 80229

Reported 2 weeks ago, updated 3 days ago

Benji Male Dog

LOST PawBoost ID: 72914048


Thornton, CO 80229

This little white boy is a 6 year old neutered maltese. His hair is a little long at the moment and he should have a gray collar on his name is Benji.

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Lost Female Dog last seen Federal Heights Storage 92nd & Elm Ct, Federal Heights, CO 80260

Reported 3 years ago, updated 3 days ago

Romie Female Dog

LOST PawBoost ID: 69492179


Federal Heights, CO 80260

Light Tan & White with a curled tipped tail, white nails, brown eyes

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Lost Female Dog last seen River Run Park, Commerce City, CO 80640

Reported 11 months ago, updated 4 days ago

Xena Female Dog

LOST PawBoost ID: 71721918


Commerce City, CO 80640

Blue collar with tag POSSIBLE SIGHTING 10/15/25 in Woodglen neighborhood in Northglenn/Thornton area!

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Lost Dog Data for Boulder, CO

There are 150 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 – 2,228,971 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.