How to report illegal fireworks in Colorado

Jul 1, 2024, 9:57 AM | Updated: 11:54 am

While we enjoy celebrating Independence Day like anyone else, we can sympathize with those who have children or pets who experience anxiety around this time of year.

With that in mind, if you need to make a complaint regarding “illegal” fireworks, we’ve complied a list of how to contact your law enforcement agency. In all cases, if there is no fire or injury, please don’t call 911.

Fireworks that explode or launch into the air are prohibited in Colorado, but some people still use them during the Fourth of July. The only fireworks allowed in the state must contain less than 50 milligrams of explosive material, as stated by Colorado law.

It is important to note that calling 911 to report illegal fireworks can overwhelm dispatch calls, so it is best to reserve 911 for cases of injury or fire that pose a threat to life or property.

When reporting the illegal use of fireworks, it is helpful to provide accurate information, including a specific address, to the relevant agencies. Here’s how some agencies across the metro area are asking people to report illegal fireworks:

Adams County

Residents of unincorporated Adams County should call the  non-emergency number: 303-288-1535.

Arapahoe County

If you live in unincorporated Arapahoe County including Centennial, Bennett, Foxfield and Deer Trail, you can report illegal fireworks to the Arapahoe County Sheriff’s Office non-emergency line at 303-795-4711.


To report fireworks complaints, call 720-898-6919.


The city has set up a fireworks reporting hotline at 303-627-5678. Residents can also report online.


Boulder residents are asked to call the City of Boulder’s non-emergency line at 303-441-3333.

Boulder County

Call the non-emergency number 303-441-4444


Brighton Police Department non-emergency line: 303-288-1535.


Most fireworks are illegal within North Metro Fire Rescue District, which includes the City and County of Broomfield. You can call the non-emergency number: 303-438-6400.

Commerce City 

It is illegal to possess, make, use, or sell fireworks – even small sparklers – within Commerce City and on June 18 city council held an emergency ordinance and voted to increase the fine to $500 for the first offense and $750 for each subsequent offense. Call the non-emergency line at 303-288-1535.


The Denver Police Department said there are two ways to report the use or sale of illegal fireworks in the Mile High City: online, or by calling 720-913-2000.

Douglas County

The Douglas County Sheriff’s Office has a fireworks hotline that people can use to report illegal fireworks by calling 303-814-7118, which will be active on evenings from July 3 to 6. If you are calling outside of those times, use the non-emergency line at 303-660-7500

Jefferson County

The Jefferson County Sheriff’s Office is asking those reporting to have witnessed the fireworks and provide a specific address. This can be done by calling the fireworks information line at 303-980-7340. You can also report illegal fireworks use online here or on the JeffCom911 app.


By Lakewood city ordinance, all fireworks are prohibited except professional displays. This includes items like sparklers, Roman candles, and smoke bombs. Fines for illegal fireworks can reach $2,650. To report illegal fireworks in progress call 303-980-7340.

Go to the Lakewood Together page, where you can drop a pin to show where you’re hearing or seeing illegal fireworks activity. Placing a pin does not dispatch a police agent to the location but helps locate areas for future education and enforcement efforts.


Longmont has set up an online tool  to report illegal fireworks or you can contact the fireworks call center at 303-774-4731.


Call the Northglenn non-emergency number: 303-288-1535.


The Parker Police Department has an online tool  to report the illegal use of fireworks.


All fireworks are illegal in Thornton. Call the non-emergency line 720-977-5124 to report fireworks being used. The first violation will result in a mandatory minimum fine of $500. A second violation within 12 months will result in a mandatory minimum fine of $1,000.

Weld County

Call the Weld County non-emergency number:  970-350-9600.


To report illegal use of fireworks, call the non-emergency line 303-658-4360. Some fireworks are permissible in Westminster. Those include any that are “non-explosive” and not intended to leave the ground or create a loud noise.

Wheat Ridge

All fireworks are illegal in Wheat Ridge. If you see fireworks being used, please do not call 911. Special call takers will be on duty to take fireworks calls at 303-980-7340, now through July 4 from 7:30 p.m. – 12:30 a.m.

If your area isn’t listed, you should look up the non-emergency line of your law enforcement agency.

Colorado state law proscribes that the use of illegal fireworks can result in fines of up to $750 and possible jail time. Read the law here.

Please have a safe and enjoyable 4th of July holiday.

Colorado Fourth of July fireworks: What you need to know

Big sales for 4th of July but you might want to avoid these

Colorado News

(Photo by David Becker/Getty Images)...

Jenny D

Donny Osmund called in today and Jenny’s Mom made a bold statement

Ever since I have loved music there is one thing I know … Donny Osmund is the man and my mom is border line obsessed with him. Well he called […]

55 minutes ago

(Photo by Ariana Drehsler/Getty Images)...

Jenny D

Top 10 sweatiest cities … of course we are on the list after this weekend!

Now even more proof that Colorado gets HOT and sweaty!

1 hour ago

Devastating Blow: Nuggets' Top Prospect Tears Achilles in Summer League...

Jim Lawson

Devastating Blow: Nuggets’ top prospect tears achilles in summer league

DaRon Holmes II had a strong start in his first professional game during the Las Vegas Summer League on Friday night, but unfortunately, it concluded with the rookie having to […]

2 days ago

The Kathie J Show...

Kathie J

The Kathie J Show | July 12, 2024

In this episode, Kathie hangs out with Denver native, Dr. Jim Hoven. Jim helped Kathie lose 75 lbs. and get her life back. He is the COO of Ramos Law, […]

3 days ago


Shawn Patrick

Nearly complete dinosaur fossil from Colorado for sale

I guess I am naive, but I had no idea you could buy dinosaur fossils. I guess I just assumed they all went to museums. I was not only wrong, […]

3 days ago


Melissa Moore

Kathie J’s mom wants us to stock up on ice…why?

Why do we need to stock up on ice this heat advisory weekend?  Melissa still doesn’t understand and Kathie really doesn’t either. Office Chat with Melissa Moore & Kathie J- […]

3 days ago

How to report illegal fireworks in Colorado