ZIP 85143 recorded 52 fire and hazmat incidents in 2025, 167 across 2021–2025. Primary county: Pinal County, AZ. FEMA NRI rates wildfire risk here as Very High.
167 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 1 | |
| 2022 | 0 | |
| 2023 | 68 | |
| 2024 | 46 | |
| 2025 | 52 |
Jun peaks. Nov dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 85143 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 22 | 13.2% | |
| 2 | Brush, or brush and grass mixture fire | 20 | 12.0% | |
| 3 | Fire, other | 13 | 7.8% | |
| 4 | Cooking fire, confined to container | 11 | 6.6% | |
| 5 | Building fires | 8 | 4.8% |
For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 85143 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 14 | 23.7% | |
| 2 | Outside area, other | 10 | 16.9% | |
| 3 | Open area - outside; included are farmland, field | 8 | 13.6% | |
| 4 | Engine area, running gear, wheel area | 4 | 6.8% | |
| 5 | Other | 3 | 5.1% | |
| 6 | Vehicle storage area; garage, carport | 3 | 5.1% | |
| 7 | Vehicle area, other | 3 | 5.1% | |
| 8 | Courtyard, patio, porch, terrace | 3 | 5.1% | |
| 9 | All other areas | 11 | 18.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 35 | 59.3% | |
| 2 | Heat source: other | 6 | 10.2% | |
| 3 | Heat from powered equipment, other | 5 | 8.5% | |
| 4 | Arcing | 3 | 5.1% | |
| 5 | Hot ember or ash | 3 | 5.1% | |
| 6 | Spark, ember or flame from operating equipment | 1 | 1.7% | |
| 7 | Hot or smoldering object, other | 1 | 1.7% | |
| 8 | Fireworks | 1 | 1.7% | |
| 9 | All other sources | 4 | 6.8% |
Largest single-incident losses in ZIP 85143 across 2021–2025. These 8 fires alone account for 857% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2024 | Major |
| 2 | $100,000 | Building fires | 2024 | Significant |
| 3 | $100,000 | Building fires | 2025 | Significant |
| 4 | $50,000 | Building fires | 2023 | Significant |
| 5 | $50,000 | Building fires | 2023 | Significant |
| 6 | $30,000 | Passenger vehicle fire | 2023 | Significant |
| 7 | $30,000 | Passenger vehicle fire | 2024 | Significant |
| 8 | $15,000 | Passenger vehicle fire | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 85143.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | San Tan Valley | 155 | |
| 2 | Florence | 5 | |
| 3 | Queen Creek | 4 |
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 — 167 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.