ZIP 80503 recorded 126 fire and hazmat incidents in 2025, 729 across 2021–2025. Primary county: Boulder County, CO. FEMA NRI rates wildfire risk here as Very High.
729 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 137 | |
| 2022 | 178 | |
| 2023 | 114 | |
| 2024 | 174 | |
| 2025 | 126 |
Apr peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 80503 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 124 | 17.0% | |
| 2 | Grass fire | 93 | 12.8% | |
| 3 | Building fires | 70 | 9.6% | |
| 4 | Authorized controlled burning | 54 | 7.4% | |
| 5 | Brush, or brush and grass mixture fire | 49 | 6.7% |
For the 9 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 80503 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 30 | 17.8% | |
| 2 | Outside area, other | 28 | 16.6% | |
| 3 | Undetermined | 22 | 13.0% | |
| 4 | Engine area, running gear, wheel area | 16 | 9.5% | |
| 5 | Cooking area, kitchen | 11 | 6.5% | |
| 6 | Other | 8 | 4.7% | |
| 7 | Highway, parking lot, street: on or near | 7 | 4.1% | |
| 8 | Wildland, woods | 7 | 4.1% | |
| 9 | All other areas | 40 | 23.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 62 | 36.7% | |
| 2 | Heat source: other | 13 | 7.7% | |
| 3 | Hot ember or ash | 13 | 7.7% | |
| 4 | Arcing | 12 | 7.1% | |
| 5 | Heat from powered equipment, other | 10 | 5.9% | |
| 6 | Hot or smoldering object, other | 9 | 5.3% | |
| 7 | Spark, ember or flame from operating equipment | 8 | 4.7% | |
| 8 | Radiated, conducted heat from operating equipment | 6 | 3.6% | |
| 9 | All other sources | 36 | 21.3% |
Largest single-incident losses in ZIP 80503 across 2021–2025. These 8 fires alone account for 393% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,216,000 | Building fires | 2024 | Major |
| 2 | $754,900 | Building fires | 2025 | Major |
| 3 | $500,000 | Brush, or brush and grass mixture fire | 2021 | Major |
| 4 | $500,000 | Building fires | 2023 | Major |
| 5 | $350,000 | Road freight or transport vehicle fire | 2021 | Major |
| 6 | $330,000 | Aircraft fire | 2021 | Major |
| 7 | $200,000 | Building fires | 2022 | Significant |
| 8 | $150,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 80503.
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 — 729 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.