ZIP 80603 recorded 100 fire and hazmat incidents in 2025, 549 across 2021–2025. Primary county: Adams County, CO. FEMA NRI rates wildfire risk here as Very High.
549 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 114 | |
| 2022 | 102 | |
| 2023 | 105 | |
| 2024 | 128 | |
| 2025 | 100 |
May peaks. Nov dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 80603 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 109 | 19.9% | |
| 2 | Grass fire | 73 | 13.3% | |
| 3 | Gas leak (natural gas or LPG) | 69 | 12.6% | |
| 4 | Authorized controlled burning | 50 | 9.1% | |
| 5 | Building fires | 37 | 6.7% |
For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 80603 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 24 | 26.7% | |
| 2 | Undetermined | 9 | 10.0% | |
| 3 | Outside area, other | 8 | 8.9% | |
| 4 | Operator/passenger area of transportation equip. | 5 | 5.6% | |
| 5 | Cargo/trunk area - all vehicles | 4 | 4.4% | |
| 6 | Cooking area, kitchen | 3 | 3.3% | |
| 7 | Vehicle storage area; garage, carport | 3 | 3.3% | |
| 8 | Wall assembly | 3 | 3.3% | |
| 9 | All other areas | 31 | 34.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 34 | 37.8% | |
| 2 | Arcing | 14 | 15.6% | |
| 3 | Heat from powered equipment, other | 10 | 11.1% | |
| 4 | Radiated, conducted heat from operating equipment | 5 | 5.6% | |
| 5 | Hot or smoldering object, other | 5 | 5.6% | |
| 6 | Hot ember or ash | 4 | 4.4% | |
| 7 | Heat source: other | 3 | 3.3% | |
| 8 | Heat, spark from friction | 3 | 3.3% | |
| 9 | All other sources | 12 | 13.3% |
Largest single-incident losses in ZIP 80603 across 2021–2025. These 8 fires alone account for 146% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2025 | Major |
| 2 | $398,000 | Building fires | 2024 | Major |
| 3 | $300,000 | Building fires | 2025 | Major |
| 4 | $155,000 | Passenger vehicle fire | 2025 | Significant |
| 5 | $100,000 | Building fires | 2025 | Significant |
| 6 | $75,000 | Passenger vehicle fire | 2024 | Significant |
| 7 | $70,000 | Building fires | 2021 | Significant |
| 8 | $45,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 80603.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Brighton | 126 | |
| 2 | Commerce City | 82 | |
| 3 | Lochbuie | 57 | |
| 4 | Thornton | 5 | |
| 5 | Dacono | 3 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Weld County | CO | 0.50 | FIPS 08123 |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 549 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.