ZIP 84104 recorded 297 fire and hazmat incidents in 2025, 1,895 across 2021–2025. Primary county: Salt Lake County, UT. FEMA NRI rates wildfire risk here as Very High.
1,895 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 306 | |
| 2022 | 408 | |
| 2023 | 401 | |
| 2024 | 483 | |
| 2025 | 297 |
Jun peaks. Mar dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 84104 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Outside rubbish, trash or waste fire | 219 | 11.6% | |
| 2 | Outside rubbish fire, other | 176 | 9.3% | |
| 3 | Unauthorized burning | 170 | 9.0% | |
| 4 | Trash or rubbish fire, contained | 124 | 6.5% | |
| 5 | Brush, or brush and grass mixture fire | 122 | 6.4% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 84104 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 99 | 29.9% | |
| 2 | Engine area, running gear, wheel area | 63 | 19.0% | |
| 3 | Outside area, other | 27 | 8.2% | |
| 4 | Operator/passenger area of transportation equip. | 18 | 5.4% | |
| 5 | Vehicle area, other | 14 | 4.2% | |
| 6 | Other | 11 | 3.3% | |
| 7 | Cargo/trunk area - all vehicles | 11 | 3.3% | |
| 8 | Exterior, exposed surface | 7 | 2.1% | |
| 9 | All other areas | 81 | 24.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 201 | 60.7% | |
| 2 | Heat from powered equipment, other | 25 | 7.6% | |
| 3 | Heat source: other | 17 | 5.1% | |
| 4 | Arcing | 16 | 4.8% | |
| 5 | Radiated, conducted heat from operating equipment | 15 | 4.5% | |
| 6 | Hot or smoldering object, other | 13 | 3.9% | |
| 7 | Heat, spark from friction | 8 | 2.4% | |
| 8 | Heat from other open flame or smoking materials | 7 | 2.1% | |
| 9 | All other sources | 29 | 8.8% |
Largest single-incident losses in ZIP 84104 across 2021–2025. These 8 fires alone account for 515% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2021 | Major |
| 2 | $500,000 | Building fires | 2024 | Major |
| 3 | $400,000 | Building fires | 2022 | Major |
| 4 | $400,000 | Road freight or transport vehicle fire | 2022 | Major |
| 5 | $200,000 | Road freight or transport vehicle fire | 2022 | Significant |
| 6 | $200,000 | Building fires | 2023 | Significant |
| 7 | $150,000 | Building fires | 2022 | Significant |
| 8 | $150,000 | Building fires | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 84104.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Salt Lake City | 1,888 | |
| 2 | West Valley City | 1 |
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 — 1,895 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.