In 2025, fire departments serving Casa Grande responded to 227 fire and hazmat incidents — from cooking fires to gas leaks to a single $850K building blaze. Here's the full picture.
Gas leak (natural gas or LPG) lead by count. Building fires lead by dollars. Together the top five categories make up about 53% of all calls.
Apr peaks. Oct dips. Watch for the typical fall climb starting in October.
1,549 incidents 2021–2025. Peak year was 2023. $6.9M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 402 | — | |
| 2022 | 353 | -12.2% | |
| 2023 | 407 | +15.3% | |
| 2024* | 160 | — | |
| 2025 | 227 | — |
* Well below Casa Grande's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.
For the 13 building fires Casa Grande departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 785 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 270 | 34.4% | |
| 2 | Open area - outside; included are farmland, field | 178 | 22.7% | |
| 3 | Engine area, running gear, wheel area | 75 | 9.6% | |
| 4 | Cooking area, kitchen | 26 | 3.3% | |
| 5 | Exterior, exposed surface | 24 | 3.1% | |
| 6 | Highway, parking lot, street: on or near | 23 | 2.9% | |
| 7 | Vehicle storage area; garage, carport | 14 | 1.8% | |
| 8 | Wildland, woods | 14 | 1.8% | |
| 9 | Outside area, other | 13 | 1.7% | |
| 10 | Wall surface: exterior | 11 | 1.4% | |
| 11 | All other areas | 137 | 17.5% |
NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Casa Grande mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 556 | 70.8% | |
| 2 | Hot or smoldering object, other | 26 | 3.3% | |
| 3 | Radiated, conducted heat from operating equipment | 23 | 2.9% | |
| 4 | Arcing | 23 | 2.9% | |
| 5 | Spark, ember or flame from operating equipment | 21 | 2.7% | |
| 6 | Cigarette lighter | 20 | 2.5% | |
| 7 | Heat, spark from friction | 15 | 1.9% | |
| 8 | Heat from direct flame, convection currents | 12 | 1.5% | |
| 9 | Hot ember or ash | 10 | 1.3% | |
| 10 | Incendiary device | 10 | 1.3% | |
| 11 | All other sources | 69 | 8.8% |
Largest single-incident property losses reported by Casa Grande departments in 2025. These 8 fires alone account for 97% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $850,000 | Building fires | Major | Investigated |
| 2 | $500,000 | Fire in mobile home used as fixed residence | Major | Investigated |
| 3 | $200,000 | Fire in mobile home used as fixed residence | Significant | Investigated |
| 4 | $50,000 | Building fires | Significant | Investigated |
| 5 | $25,000 | Fire in mobile home used as fixed residence | Significant | Investigated |
| 6 | $18,990 | Fire in mobile home used as fixed residence | Significant | Investigated |
| 7 | $16,232 | Fire in motor home, camper, recreational vehicle | Significant | Investigated |
| 8 | $10,000 | Off-road vehicle or heavy equipment fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Casa Grande sits below the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 268,372 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2019 | Recreation and ceremony | 123,875 | 47.1 mi | |
| 2020 | Natural | 24,729 | 43.5 mi | |
| 2005 | Recreation and ceremony | 17,131 | 28.5 mi | |
| 2005 | Natural | 11,000 | 49.0 mi | |
| 2020 | Natural | 9,539 | 40.8 mi | |
| 1995 | Missing data/not specified/undetermined | 9,500 | 47.8 mi | |
| 2008 | Natural | 6,660 | 42.7 mi | |
| 1995 | Arson/incendiarism | 6,512 | 35.6 mi | |
| 2005 | Recreation and ceremony | 6,229 | 28.1 mi | |
| 1995 | Missing data/not specified/undetermined | 5,471 | 38.8 mi | |
| 2005 | Railroad operations and maintenance | 5,000 | 31.3 mi | |
| 1995 | Natural | 4,300 | 8.6 mi |
Top 9 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six Arizona cities with population within ±25% of Casa Grande. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Casa Grande.
A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.
Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.