ZIP 84021 recorded 39 fire and hazmat incidents in 2025, 169 across 2021–2025. Primary county: Duchesne County, UT. FEMA NRI rates wildfire risk here as Very High.
169 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 28 | |
| 2022 | 35 | |
| 2023 | 28 | |
| 2024 | 39 | |
| 2025 | 39 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 84021 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Forest, woods or wildland fire | 17 | 10.1% | |
| 2 | Fire, other | 16 | 9.5% | |
| 3 | Building fires | 16 | 9.5% | |
| 4 | Passenger vehicle fire | 9 | 5.3% | |
| 5 | Brush, or brush and grass mixture fire | 9 | 5.3% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 84021 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 25 | 22.1% | |
| 2 | Undetermined | 23 | 20.4% | |
| 3 | Wildland, woods | 13 | 11.5% | |
| 4 | Other | 10 | 8.8% | |
| 5 | Engine area, running gear, wheel area | 7 | 6.2% | |
| 6 | Highway, parking lot, street: on or near | 6 | 5.3% | |
| 7 | Open area - outside; included are farmland, field | 5 | 4.4% | |
| 8 | Storage area, other | 3 | 2.7% | |
| 9 | All other areas | 21 | 18.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 53 | 46.9% | |
| 2 | Heat source: other | 14 | 12.4% | |
| 3 | Lightning | 11 | 9.7% | |
| 4 | Cigarette lighter | 6 | 5.3% | |
| 5 | Radiated, conducted heat from operating equipment | 5 | 4.4% | |
| 6 | Arcing | 5 | 4.4% | |
| 7 | Heat from powered equipment, other | 3 | 2.7% | |
| 8 | Hot ember or ash | 3 | 2.7% | |
| 9 | All other sources | 13 | 11.5% |
Largest single-incident losses in ZIP 84021 across 2021–2025. These 8 fires alone account for 155% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $2,000,000 | Fire, other | 2025 | Major |
| 2 | $400,000 | Building fires | 2023 | Major |
| 3 | $250,000 | Oil or other combustible liquid spill | 2022 | Major |
| 4 | $200,000 | Building fires | 2023 | Significant |
| 5 | $200,000 | Mobile property (vehicle) fire, other | 2024 | Significant |
| 6 | $80,000 | Vehicle accident, general cleanup | 2021 | Significant |
| 7 | $75,000 | Building fires | 2021 | Significant |
| 8 | $75,000 | Building or structure weakened or collapsed | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 84021.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Duchesne | 53 |
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 — 169 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.