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Weld County, CO Fire Regulations: Wildfire Zones (2026)

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

Key Facts

Effective date
July 1, 2026, for enforcement
Zones covered
High, Moderate, Low Intensity Non-Federal
Where it applies
Unincorporated, outside any fire district
Exemption
35+ acre parcel, single home, no abutting use
Enforcing agency
Colo. Division of Fire Prevention and Control
State authority
C.R.S. § 24-33.5-1237

Summary

Starting July 1, 2026, Weld County enforces Colorado's 2025 Wildfire Resiliency Code on every unincorporated parcel the state maps as High, Moderate, or Low Intensity Non-Federal, wherever there's no city, town, or fire district already covering that ground. A narrow carve-out exempts a lone house on 35 acres or more that doesn't touch a residential or commercial area.

City-specific rules exist: Greeley has its own wildfire zones rules that differ from Weld County's county-level regulations. If you live in Greeley, check the city-specific page instead.

As required by C.R.S. Section 24-33.5-1237, the Board of County Commissioners hereby adopts the 2025 Colorado Wildfire Resiliency Code (the "Resiliency Code") and subsequent versions thereto... B. The Effective Date of the Resiliency Code for the purpose of enforcement shall be July 1, 2026. C. The Resiliency Code shall apply to parcels located in Weld County outside the corporate limits of a city or town and outside the boundaries of a fire protection district, and which are shown on the State Map for the Application of the 2025 Colorado Wildfire Resiliency Code... and designated: 1. High Intensity Non-Federal; or 2. Moderate Intensity Non-Federal; or 3. Low Intensity Non-Federal. 4. Exempting therefrom any thirty-five (35) acre or larger parcel with only one (1) residential structure on it that does not abut a residential or commercial area.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Charter and County Code: Supplement 95).

Full Breakdown

S. 5-1237, along with whatever later versions the state's Resiliency Code Board issues, deleting only Appendix C from the standard. The code reaches parcels 'located in Weld County outside the corporate limits of a city or town and outside the boundaries of a fire protection district' that the State Map for the Application of the 2025 Colorado Wildfire Resiliency Code designates High Intensity Non-Federal, Moderate Intensity Non-Federal, or Low Intensity Non-Federal, meaning coverage depends on which zone the state map places a given parcel in rather than on a countywide line.

The Board of County Commissioners set enforcement to begin July 1, 2026, and carved out one exemption: a parcel of 35 acres or larger holding just one residential structure that doesn't abut a residential or commercial area is not covered. S. 5-1237(2)(d), rather than through the county's own Building Inspection Department. Because the 2019 legislature's SB 19-181 gave counties more direct siting authority generally, Weld's adoption ordinance is the mechanism that actually puts the state resiliency standard into force on the ground here rather than leaving it optional.

Violations & Fines

Enforcement runs through the Colorado Division of Fire Prevention and Control at the county's request under C.R.S. Section 24-33.5-1237(2)(d), not through Weld's own Building Inspection Department. A parcel inside a mapped High, Moderate, or Low Intensity Non-Federal zone that doesn't qualify for the 35-acre exemption must meet the Resiliency Code as a condition of construction once enforcement begins July 1, 2026.

Frequently Asked Questions

Which Weld County properties fall under the Wildfire Resiliency Code?
Only unincorporated parcels outside any city, town, or fire protection district that the state's official map designates High, Moderate, or Low Intensity Non-Federal under the 2025 Colorado Wildfire Resiliency Code. Section 7-1-10 adopted the code effective July 1, 2026, so coverage depends on the state map, not just being in Weld County.
Is there an exemption from the Weld County wildfire code?
Yes. Section 7-1-10 exempts any parcel of 35 acres or larger that holds only one residential structure and doesn't abut a residential or commercial area. Smaller parcels, or larger parcels bordering developed areas, remain subject to the Resiliency Code if the state map places them in a covered zone.
Who enforces the wildfire code on Weld County property, the county or the state?
The state does. Section 7-1-20 assigns enforcement to the Colorado Division of Fire Prevention and Control, acting at the Board of County Commissioners' request under C.R.S. Section 24-33.5-1237(2)(d), rather than routing it through Weld's Building Inspection Department like an ordinary building permit.

Sources & Official References

Other rules in Weld County

All Weld County rules

Compare Weld County to another location·View the Colorado fire regulations overview

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