Colorado Leash Laws

Updated October 13, 2026 · 1 min read · 2 sources

Short answer

Colorado has no statewide leash law. Counties may require dogs to be under control at all times, with exceptions for working livestock, hunting and police dogs, and cities set their own leash rules. Unvaccinated pets may not run at large when a rabies vaccination order is in effect.

Colorado has no statewide leash law. Leash and at-large rules come from cities and counties, so the answer depends on where you are.

Colorado leash law at a glance

Question Answer
Statewide leash law? No
County option May require control at all times (30-15-101)
Rabies orders Uninoculated animals may not run at large (25-4-610)
Harassing wildlife Petty offense, $200 (33-6-128)

What Colorado state law says

  • Counties may require dogs to be under control at all times, except while working livestock, hunting or on law enforcement duty.
  • Uninoculated animals may not run at large under a vaccination order (C.R.S. 25-4-610).
  • A dog harassing wildlife is a petty offense with a $200 fine (33-6-128).
  • Municipalities ban dogs at large under local ordinances.

Local leash ordinances

City and county codes do most of the work here. They typically say when a dog must be leashed, how long the leash can be, which parks allow off-leash dogs, and what fines apply when a dog is found running loose.

Staying on the right side of the law

  • Keep your dog leashed in public unless you are in a posted off-leash area.
  • Make sure your dog wears a current license and rabies tag, since a loose dog without tags is the one most likely to be impounded.
  • If your dog has been declared dangerous, stricter leash, muzzle and enclosure rules apply; see the dangerous dog section of Colorado dog bite laws.
  • A dog that runs loose and injures someone can create liability for the owner, so a leash is also your best protection.
  • Leash training makes compliance easy; a local dog trainer can help with pulling and recall.

Sources

  1. Michigan State University Animal Legal & Historical Center: Colorado dog laws
  2. Michigan State University Animal Legal & Historical Center: State dog leash laws

Find help near you in Colorado

Popular cities: Pueblo · Colorado Springs · Denver · Parker · Durango · Aurora · Pueblo West · Grand Junction · Castle Rock · La Junta · Estes Park · Edwards

This page summarizes state statutes for general information and is not legal advice. Laws change and cities and counties often add their own rules; check the current statute and your local ordinance, or ask a licensed attorney about your situation.

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