ZIP 85378 recorded 81 fire and hazmat incidents in 2025, 435 across 2021–2025. Primary county: Maricopa County, AZ. FEMA NRI rates wildfire risk here as Very High.
435 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 65 | |
| 2022 | 98 | |
| 2023 | 79 | |
| 2024 | 112 | |
| 2025 | 81 |
Feb peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 85378 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 103 | 23.7% | |
| 2 | Outside rubbish, trash or waste fire | 43 | 9.9% | |
| 3 | Hazardous condition, other | 43 | 9.9% | |
| 4 | Gas leak (natural gas or LPG) | 35 | 8.0% | |
| 5 | Passenger vehicle fire | 26 | 6.0% |
For the 23 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 85378 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 11 | 14.3% | |
| 2 | Engine area, running gear, wheel area | 10 | 13.0% | |
| 3 | Vehicle area, other | 8 | 10.4% | |
| 4 | Undetermined | 7 | 9.1% | |
| 5 | Cargo/trunk area - all vehicles | 5 | 6.5% | |
| 6 | Common room, den, family room, living room, lounge | 4 | 5.2% | |
| 7 | Outside area, other | 4 | 5.2% | |
| 8 | Open area - outside; included are farmland, field | 3 | 3.9% | |
| 9 | All other areas | 25 | 32.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 20 | 26.0% | |
| 2 | Heat from powered equipment, other | 18 | 23.4% | |
| 3 | Heat source: other | 10 | 13.0% | |
| 4 | Arcing | 6 | 7.8% | |
| 5 | Spark, ember or flame from operating equipment | 4 | 5.2% | |
| 6 | Radiated, conducted heat from operating equipment | 4 | 5.2% | |
| 7 | Hot or smoldering object, other | 4 | 5.2% | |
| 8 | Heat from undetermined smoking material | 3 | 3.9% | |
| 9 | All other sources | 8 | 10.4% |
Largest single-incident losses in ZIP 85378 across 2021–2025. These 8 fires alone account for 140% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $400,000 | Passenger vehicle fire | 2025 | Major |
| 2 | $200,000 | Building fires | 2025 | Significant |
| 3 | $150,000 | Building fires | 2025 | Significant |
| 4 | $100,000 | Building fires | 2021 | Significant |
| 5 | $80,000 | Building fires | 2024 | Significant |
| 6 | $50,000 | Building fires | 2022 | Significant |
| 7 | $50,000 | Building fires | 2023 | Significant |
| 8 | $30,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 85378.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Surprise | 408 | |
| 2 | Sun City | 9 | |
| 3 | Sun City West | 2 |
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 — 435 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.