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10 Off-Leash Dog Parks in Thornton, CO, You Can Visit in 2026

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boston terrier posing in the park

Are you looking to have fun with your pup in the north Denver metro area? You can never go wrong with a visit to an off-leash dog park. It is the perfect place for your four-legged friend to play, exercise, and meet new friends.

There are not many off-leash parks in Thornton. However, there are plenty of exciting options in the surrounding area where you and your pup can engage in many fun outdoor activities. Choosing the best off-leash park to visit can be overwhelming when you have several to choose from. And that’s where we come in.

We have sifted through the parks to develop a list of Thornton’s ten best off-leash dog parks. Browse our picks below to find the perfect destination for you and your furry friend.

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The 10 Off-Leash Dog Parks in Thornton, CO

1. Trail Winds Dog Park

️ Address: 13385 Holly St, Thornton, CO 80241
Open Times: 6 AM to 11 PM
Cost: Free
Off-leash allowed?: Yes
  • Separate sections for small and large dogs
  • The fences might be too short for some dogs
  • It provides dog poop bags
  • It is huge, with football/soccer fields and a skateboard park
  • Enjoy sitting on the benches and shaded area

2. Kennedy Dog Park

️ Address: 9700 E Hampden Ave, Denver, CO 80231
Open Times: 6 AM to 9 PM
Cost: Free
Off-leash allowed?: Yes
  • Separate sections for high and low-energy dogs
  • It does not provide poop bags and could use some more trash cans
  • Spacious area for your dog to run off-leash
  • Plenty of parking available
  • Plenty of water bowls but no water source

3. Big Dry Creek Dog Park

️ Address: WXHR+4JR, 1700 W 128th Ave, Westminster, CO 80234
Open Times: Open 24 hours
Cost: Free
Off-leash allowed?: Yes
  • Water fountains are available
  • It features a large playground, soccer field, baseball field, and lots of trails
  • It has tables and benches where you can sit and relax
  • It could use more shade
  • Remember to clean up after your dog

4. Westminster Hills Open Area Dog Park

️ Address: 10499 Simms St, Westminster, CO 80005
Open Times: Open 24 hours
Cost: Free
Off-leash allowed?: Yes
  • No secure fences, so keep an eye on your pup
  • It features multiple hiking trails
  • Watch out for rattlesnakes on the trails during summer
  • Plenty of parking space available
  • Your pup can enjoy swimming in the seasonal canal

5. Willow Bark Park

️ Address: 54th Pl, Denver, CO 80238, United States
Open Times: 6 AM to 10 PM
Cost: Free
Off-leash allowed?: Yes
  • It has separate sections for large and small dogs
  • Plenty of space for your dog to run off-leash
  • It has picnic tables and benches to sit and relax
  • It has too much sand with no grass
  • Very few dogs around

6. The Great Bark Park Dog Park

️ Address: 597 N 119th St, Lafayette, CO 80026
Open Times: 6 AM to 10 PM
Cost: Free
Off-leash allowed?: Yes
  • It has a separate area for small dogs
  • Restrooms are available
  • There are several covered benches to sit on
  • It has plenty of water bowls but no water source
  • There are several strategically placed poop bag dispensers

7. Berkeley Dog Park

️ Address: CO-95, Denver, CO 80212
Open Times: 6 AM to 11 PM
Cost: Free
Off-leash allowed?: Yes
  • Enjoy walking around the beautiful lake
  • It has a fenced-in section for dogs under 25 pounds
  • Not enough shade
  • Plenty of tennis balls for your canine to chase
  • Volunteers provide water and keep the park clean

8. Lowry Dog Park

️ Address: Yosemite Way & E 4th Pl, Denver, CO 80230
Open Times: 6 AM to 8 PM
Cost: Free
Off-leash allowed?: Yes
  • It has separate sections for small and large dogs
  • Adventurous canines will love the agility area
  • A bit of a walk from the parking lot
  • It could use more shade
  • Bring your own water

9. West Arvada Dog Park

️ Address: 17975 W 64th Ave, Arvada, CO 80005
Open Times: 8 AM to 8 PM
Cost: Free
Off-leash allowed?: Yes
  • It has a separate fenced area for small dogs
  • Agility equipment is available during the summer
  • Plenty of tennis balls for your dog to chase
  • It has very little shade
  • It has poop bags with plenty of trash cans

10. Tony Grampsas Dog Park

️ Address: 4471 Salvia St, Golden, CO 80403
Open Times: 6 AM to 10 PM
Cost: Free
Off-leash allowed?: Yes
  • Enjoy hiking along the trails
  • Close to a playground, bike park, archery range, ball fields, and brewery
  • It has plenty of shade
  • It features a creek where your furry friend can cool off
  • Bring your own water

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Final Thoughts

We hope you have found some exciting places to visit with your pup from our list. Trail Winds Dog Park is in Thornton, and the rest are in the surrounding area. Ensure you carry all the supplies you will need for the trip before you leave home. Also, familiarize yourself with the park rules to avoid any embarrassment.

You are likely to meet many other dogs in the park. So, keep an eye on your pup to keep them away from any danger. As always, don’t forget to clean up after your canine. You are sharing the park with other people and dogs, and it’s good to be polite and considerate.

You may also be interested in:


Featured Image Credit: Eve Photography, Shutterstock

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