Can You Carry a Firearm in Longmont, Colorado?

How Firearm Carry Laws Apply in Longmont — Clearing Up Common Confusion

Yes — you may legally carry a firearm in Longmont, provided you comply with Colorado state law and applicable location-based restrictions. Although Longmont is close to Boulder, Boulder’s firearm bans do not apply in Longmont.

This guide explains open carry, concealed carry, vehicle carry, and restricted locations as they apply in Longmont.

Open Carry in Longmont

Open carry of a firearm is legal in Longmont under Colorado law.

Key points:

Longmont has not enacted a city-wide open carry ban
Boulder’s open carry prohibition does not extend into Longmont
Private property owners may prohibit firearms
Certain government buildings restrict carry

While lawful, open carry may still result in police contact if a complaint is made.

Concealed Carry Rules in Longmont

To carry a concealed handgun in Longmont, you must have a valid Colorado Concealed Handgun Permit (CHP) or a permit recognized under Colorado reciprocity law.

Important notes:

Colorado is a shall-issue state
Longmont does not issue its own concealed carry permit
Your CHP must be carried while armed
A CHP does not override posted or statutory restrictions

Carrying a Firearm in a Vehicle (Longmont & Statewide)

Colorado law allows lawful firearm carry inside a vehicle, whether or not you hold a permit, as long as the firearm is legally possessed.

Handguns in Vehicles

May be carried with or without a CHP
May be loaded
May be carried openly or concealed inside the vehicle

🚫 Loaded Long Guns Are Prohibited in Vehicles

Colorado law prohibits loaded rifles or shotguns in motor vehicles under Colorado Revised Statutes § 33-6-125.

Best practice:

Keep long guns unloaded
Chamber clear
Remove the magazine when possible

This restriction does not apply to handguns.

Statewide Prohibited & Restricted Carry Locations

Even with a valid CHP, firearms are prohibited or restricted in the following locations statewide:

Location / Institution	Restriction
Denver City Buildings	No carry (CHP does not apply)
City & County of Denver	Open carry prohibited
Boulder (Citywide)	Open carry prohibited
Boulder Parks & Recreation Facilities	Firearms prohibited
CU Boulder / CSU / UNC – Inside Buildings	Concealed carry prohibited indoors
University Campuses – Outdoor Areas	Carry may be allowed
Federal Buildings & Federal Courthouses	Prohibited
Local & County Courthouses	Prohibited
Legislative Buildings & Meetings	Prohibited
Military Bases	Prohibited without written authorization
Correctional Facilities	Prohibited
Hospitals	Prohibited at most facilities
Medical Offices & Clinics	Typically prohibited if posted
Denver International Airport (DIA)	Prohibited except firearm check-in
College & University Buildings (Public & Private)	Prohibited inside
Public & Private K-12 Schools	Prohibited inside
K-12 School Property (Vehicle Storage)	Permitted if firearm remains in vehicle
Native American Reservations	Restricted — tribal law applies
Private Property with Posted “No Firearms” Signs	Carry prohibited if posted

Longmont enforces these restrictions through Colorado state law, not a unique municipal firearms code.

Firearms in Longmont City Buildings

Longmont may prohibit firearms inside specific city-owned buildings if:

Security screening is present, and
Proper signage is posted

Always check signage at:

City offices
Municipal court
Recreation centers
Government facilities

Police Contact & Disclosure

Colorado does not require proactive disclosure that you are carrying a firearm.

However:

You must disclose if asked
You must present your CHP upon request
Do not reach for the firearm or permit without instruction

Recommended phrasing:

“I am legally carrying a concealed firearm and have a valid permit.”

Common Firearm Carry Mistakes in Longmont

Assuming Boulder firearm laws apply in Longmont
Carrying into posted municipal buildings
Forgetting your CHP while concealed carrying
Transporting a loaded rifle or shotgun in a vehicle
Ignoring posted private-property restrictions

Frequently Asked Questions

Can I carry a firearm in Longmont without a permit?

Yes. Open carry is legal without a permit, but concealed carry requires a valid CHP.

Can I carry a loaded handgun in my car?

Yes. Colorado allows loaded handguns in vehicles, with or without a permit.

Does Longmont follow Boulder’s gun laws?

No. Longmont follows Colorado state law, not Boulder municipal code.

Can businesses prohibit firearms?

Yes. Properly posted private property may prohibit firearms.

Bottom Line

Longmont is governed by Colorado firearm law, not Boulder’s restrictions. Lawful carry depends on location, firearm type, and method of carry, with vehicle carry and posted buildings being the most common problem areas.

Colorado Concealed Handgun Permit (CHP) Class

If you live in Colorado and are applying for a Concealed Handgun Permit (CHP), state law requires completion of a qualifying training course taught by a verified instructor. Our Colorado CHP classes meet current statutory requirements and include legal instruction, firearms safety, and required certification documentation.
View upcoming Colorado CHP classes and sign up here: Colorado Concealed Handgun Permit Class

Self-Defense Insurance

Even a lawful act of self-defense can trigger criminal investigations, civil lawsuits, and significant legal costs. Many CCW holders evaluate self-defense insurance or legal protection plans to help manage those risks—coverage varies by provider and state, so understanding the differences matters.
Learn more and compare options here: Self-Defense Insurance Comparison

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Legal Disclaimer

Legal Disclaimer: This information is provided for educational purposes only and does not constitute legal advice. Firearm laws can change, and local, state, federal, tribal, and municipal regulations may vary. Always verify current laws and consult a qualified attorney before carrying a firearm or making legal decisions related to self-defense. US Firearms Training Academy assumes no liability for actions taken based on this content.