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Boulder County, CO Trash & Recycling: Illegal Dumping (2026)

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

Key Facts

State statute
C.R.S. 18-4-511
Classification
Class 2 petty offense
First-offense fine
$20–$500 mandatory
Repeat fines
Up to $1,000
County track
Land Use Code Article 14 abatement

Summary

Dumping trash on public or private land is illegal statewide under Colorado's littering law (C.R.S. 18-4-511), a class 2 petty offense with mandatory fines from $20 up to $1,000. On unincorporated county land, dumped rubbish is also a nuisance abatable under Land Use Code Article 14.

City-specific rules exist: Longmont, and Boulder have their own illegal dumping rules that differ from Boulder County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Littering ... is a class 2 petty offense punishable, upon conviction, by a mandatory fine of not less than twenty dollars nor more than five hundred dollars upon a first conviction, by a mandatory fine of not less than fifty dollars nor more than one thousand dollars upon a second conviction, and ... not less than one hundred dollars nor more than one thousand dollars upon a third or subsequent conviction.

Full Breakdown

Illegal dumping in Boulder County is punished on two tracks. Statewide, C.R.S. 18-4-511 makes littering of public or private property a class 2 petty offense; a peace officer must issue a summons and complaint (no penalty assessment). Separately, on unincorporated county land, dumped waste is 'rubbish' under Land Use Code Article 14, letting the county order removal and, on failure, abate at the owner's expense. Roadside and open-space dumping should be reported to the Boulder County Sheriff or Community Planning & Permitting (303-441-3930). Report toxic or hazardous dumping immediately.

Violations & Fines

Under C.R.S. 18-4-511, mandatory fine of $20–$500 (first conviction), $50–$1,000 (second), and $100–$1,000 (third or later). County abatement of dumped rubbish is also billed to the responsible property owner plus fees.

Frequently Asked Questions

What's the penalty for illegal dumping in Colorado?
Littering of public or private property is a class 2 petty offense: mandatory fines of $20–$500 first offense, rising to as much as $1,000 for repeat convictions under C.R.S. 18-4-511.
How do I report roadside dumping in the county?
Report it to the Boulder County Sheriff or Community Planning & Permitting (303-441-3930). On unincorporated land the county can pursue abatement under Land Use Code Article 14.

Sources & Official References

Other rules in Boulder County

All Boulder County rules

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