Updated: 6/2/25 at 21:43 MT
Short answer: No. Openly carrying a firearm in public is prohibited in the City of Boulder, with limited exceptions. Under Boulder Municipal Code § 5-8-21, the open carry of firearms is restricted in most public places—even for lawful gun owners. However, the law raises serious questions about constitutionality and may be subject to future legal challenges.
Let’s break down what the law says, what exceptions exist, and how it interacts with state and federal rights.
📜 Boulder Municipal Code § 5-8-21: The Law
“No person shall knowingly openly carry a firearm on or about their person in a public place.”
(Boulder Muni Code § 5-8-21(a))
This law is part of Boulder’s broader effort to implement stricter local gun regulations following the repeal of Colorado’s firearm preemption law in 2021 (SB21-256). It prohibits visible carry of firearms in all public places unless a specific exception applies.
✅ Exceptions to Boulder’s Open Carry Ban
The following individuals or situations are exempt from the ban on open carry:
- Law Enforcement & Military
- On-duty federal, state, or local officers, or military personnel.
- Hunting or Target Shooting
- While actively engaged in lawful hunting or shooting activities.
- Private Property
- On your own land, business, or home—or with the property owner’s consent.
- Private Motor Vehicles
- Transporting firearms in your car is legal under C.R.S. § 18-12-105.6, as long as state law is followed.
- Unloaded Firearms in Cases
- Must be in a clearly marked, locked, or opaque gun case. Holsters are acceptable for handguns.
- Concealed Carry with Permit
- Individuals with valid concealed handgun permits (CHP) may legally carry a concealed handgun; this is not considered open carry.
- Private Security Guards
- When acting in the scope of their official duties.
🔄 Open Carry vs. Concealed Carry in Boulder
It’s critical to understand the distinction:
- Open carry is largely banned in public spaces.
- Concealed carry is permitted for those with a valid Colorado CHP.
If you intend to carry in Boulder, obtaining a concealed handgun permit is the safest and most legally secure option.
⚖️ Constitutional Concerns
While Boulder’s ordinance is valid under state law (because of SB21-256), it may still conflict with the Second Amendment and Colorado Constitution Article II, Section 13—both of which protect the right to bear arms for self-defense.
The U.S. Supreme Court’s ruling in NYSRPA v. Bruen (2022) reaffirmed that citizens have the right to carry firearms in public for self-defense. Though Bruen focused more on concealed carry restrictions, it emphasized that firearm regulations must be historically grounded and not arbitrary.
Boulder’s blanket ban on open carry in public places could be vulnerable if challenged in federal court, especially if it’s found to lack historical precedent.
👮 Enforcement and Penalties
Violating Boulder’s open carry law is a non-criminal offense, meaning:
- You won’t face jail time.
- You may be fined or cited.
- Repeat violations could lead to escalating consequences.
While the law is currently enforced, its constitutional validity is still an open question, especially in the wake of recent court rulings protecting gun rights.
✅ Bottom Line for Gun Owners in Boulder
If you’re a gun owner living in or visiting Boulder:
- Open carry is prohibited in public spaces under local law.
- You may still carry concealed if you have a valid Colorado CHP.
- Private property, hunting, and transport exceptions remain protected.
- Legal challenges to Boulder’s ban are possible, especially if it’s applied broadly or arbitrarily.
🔗 Related Resources
Compare Self-Defense Insurance Plans
Sign Up for a CCW Class in Colorado
Legal Disclaimer
The information provided in this article is for informational purposes only and should not be construed as legal advice. Laws and regulations regarding firearms are subject to change, and their interpretation can vary. Always consult with a licensed attorney or legal expert for advice on specific legal matters or before taking any action based on the content of this article. Compliance with all applicable local, state, and federal laws is the responsibility of the firearm owner.
