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Boulder County, CO Parking Rules: Commercial & Oversized Vehicles (2026)

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

Key Facts

Weight/size ban on roads
None county-specific
Home-occupation outdoor storage
Prohibited
Work vehicles in subdivisions
One outside on property
Abandoned rule applies
72 hours, any vehicle
City rules differ
Check municipal code inside cities

Summary

Boulder County's parking ordinance sets no special weight or size ban aimed at commercial trucks on county roads; the same abandoned-vehicle, sign, driveway, and hydrant rules apply. Land-use limits on outdoor business storage are the main restriction on private lots.

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

The use ... does not include the outside storage of goods, materials, or equipment.

Full Breakdown

Ordinance 2024-1 regulates parking by conduct and location (abandoned vehicles, fire-hydrant clearance, loading zones, signed restrictions) rather than by singling out commercial vehicles, so a legally registered commercial vehicle parked on a county road is governed by the same 72-hour abandoned rule and posted signs. On private residential lots the constraint comes from the Land Use Code: home occupations may not include outdoor storage of goods, materials, or equipment, and in subdivisions only one associated work vehicle may be parked outside. There is no county-wide overnight commercial-vehicle-in-residential ban like many cities impose.

Violations & Fines

Location-based parking violations carry $15/$30/$60 civil penalties; home-occupation outdoor-storage violations are enforced through the Land Use Code as zoning violations.

Frequently Asked Questions

Can I park my work truck at my house in unincorporated Boulder County?
Generally yes, but if it supports a home occupation in a subdivision, only one such vehicle may be parked outside, and no outdoor storage of business materials is allowed.
Does the county ban semi-trucks on residential streets?
The county ordinance has no specific commercial-vehicle street ban; standard rules on abandoned vehicles, signs, and hydrant clearance apply the same way.

Sources & Official References

Other rules in Boulder County

All Boulder County rules

Compare Boulder County to another location·View the Colorado parking rules overview

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