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Adams County, CO Fire Regulations: Fire Pits & Backyard Fires (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Fire pit rules in Adams County, CO, also called outdoor burning, recreational fire, or open flame ordinances, cover fuel types, clearances, and when burning is allowed.

Key Facts

Max backyard fire
3 ft wide x 2 ft tall
Clearance
25 feet from combustibles
Stage 1
Open/recreational fires banned
Stage 2
All campfires prohibited
Check first
Sheriff restriction level

Summary

Small backyard recreational fires are allowed when kept under 3 ft by 2 ft and 25 feet from anything flammable, but are completely prohibited during Sheriff-ordered fire restrictions. Charcoal and propane grills at homes remain exempt.

City-specific rules exist: Thornton has its own fire pits & backyard fires rules that differ from Adams County's county-level regulations. If you live in Thornton, check the city-specific page instead.

Building, maintaining, attending, or using a fire, campfire, coal or wood-burning stove [is prohibited].

Full Breakdown

A backyard campfire or chiminea is treated as a recreational fire by the local fire protection district: the burning pile must stay no larger than 3 ft x 3 ft x 2 ft and at least 25 feet from any structure or vegetation, with an adult and extinguisher present. During Stage 1 fire restrictions no open or recreational burning is allowed; during Stage 2 the Sheriff prohibits "building, maintaining, attending, or using a fire, campfire, coal or wood-burning stove." Grill exemptions (charcoal or propane at a private residence) survive Stage 1 but not Stage 2. Always confirm the current restriction level before lighting any fire.

Violations & Fines

Lighting a backyard fire during a fire ban is unlawful in unincorporated Adams County and can result in citation, fines, and liability for damages if the fire escapes.

Frequently Asked Questions

Can I have a campfire in my backyard in Adams County?
Yes when no restrictions are in effect and it stays under 3 ft by 2 ft, 25 feet from anything flammable, but campfires are banned during Stage 1 and Stage 2 restrictions.
Are fires ever completely banned?
Yes. Under a Sheriff Stage 2 order, building, maintaining, or attending any fire or campfire is prohibited in unincorporated Adams County.

Sources & Official References

Other rules in Adams County

All Adams County rules

How Adams County compares: Cities with the Strictest Fire Pit Rules·Compare Adams County to another location·View the Colorado fire regulations overview

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Fire Pits & Backyard Fires in Cities Across Adams County