ZIP 85742 recorded 67 fire and hazmat incidents in 2025, 350 across 2021–2025. Primary county: Pima County, AZ. FEMA NRI rates wildfire risk here as Very High.
350 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 61 | |
| 2022 | 80 | |
| 2023 | 80 | |
| 2024 | 62 | |
| 2025 | 67 |
Dec peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 85742 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 48 | 13.7% | |
| 2 | Building fires | 43 | 12.3% | |
| 3 | Brush, or brush and grass mixture fire | 30 | 8.6% | |
| 4 | Authorized controlled burning | 28 | 8.0% | |
| 5 | Passenger vehicle fire | 26 | 7.4% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 85742 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 24 | 17.8% | |
| 2 | Engine area, running gear, wheel area | 16 | 11.9% | |
| 3 | Undetermined | 15 | 11.1% | |
| 4 | Cooking area, kitchen | 14 | 10.4% | |
| 5 | Chute/container - trash, rubbish, waste | 8 | 5.9% | |
| 6 | Wall surface: exterior | 6 | 4.4% | |
| 7 | Operator/passenger area of transportation equip. | 5 | 3.7% | |
| 8 | Outside area, other | 5 | 3.7% | |
| 9 | All other areas | 42 | 31.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 35 | 25.9% | |
| 2 | Radiated, conducted heat from operating equipment | 14 | 10.4% | |
| 3 | Spark, ember or flame from operating equipment | 12 | 8.9% | |
| 4 | Arcing | 10 | 7.4% | |
| 5 | Heat source: other | 9 | 6.7% | |
| 6 | Heat from powered equipment, other | 7 | 5.2% | |
| 7 | Chemical reaction | 7 | 5.2% | |
| 8 | Hot ember or ash | 6 | 4.4% | |
| 9 | All other sources | 35 | 25.9% |
Largest single-incident losses in ZIP 85742 across 2021–2025. These 8 fires alone account for 1440% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $246,665 | Building fires | 2022 | Significant |
| 2 | $211,225 | Building fires | 2024 | Significant |
| 3 | $210,388 | Building fires | 2022 | Significant |
| 4 | $137,849 | Building fires | 2021 | Significant |
| 5 | $82,496 | Building fires | 2023 | Significant |
| 6 | $80,781 | Building fires | 2024 | Significant |
| 7 | $71,183 | Building fires | 2022 | Significant |
| 8 | $68,323 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 85742.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Tucson | 114 | |
| 2 | Marana | 68 | |
| 3 | Oro Valley | 11 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Pinal County | AZ | 0.50 | FIPS 04021 |
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 — 350 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.