In 2025, fire departments serving Corunna responded to 29 fire and hazmat incidents — from cooking fires to gas leaks to a single $140K building blaze. Here's the full picture.
Building fires lead by count. Building fires lead by dollars. Together the top five categories make up about 83% of all calls.
Mar peaks. Oct dips. Watch for the typical fall climb starting in October.
171 incidents 2021–2025. Peak year was 2023. $941K cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 31 | — | |
| 2022 | 28 | -9.7% | |
| 2023 | 50 | +78.6% | |
| 2024 | 33 | -34.0% | |
| 2025 | 29 | -12.1% |
For the 17 building fires Corunna departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 39 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 | 6 | 15.4% | |
| 2 | Other | 5 | 12.8% | |
| 3 | Open area - outside; included are farmland, field | 5 | 12.8% | |
| 4 | Outside area, other | 4 | 10.3% | |
| 5 | Vehicle area, other | 3 | 7.7% | |
| 6 | Engine area, running gear, wheel area | 3 | 7.7% | |
| 7 | Entrance way, lobby | 2 | 5.1% | |
| 8 | Cooking area, kitchen | 2 | 5.1% | |
| 9 | Structural area, other | 2 | 5.1% | |
| 10 | Function area, other | 1 | 2.6% | |
| 11 | All other areas | 6 | 15.4% |
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 Corunna mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 22 | 56.4% | |
| 2 | Hot ember or ash | 4 | 10.3% | |
| 3 | Heat source: other | 3 | 7.7% | |
| 4 | Heat from powered equipment, other | 2 | 5.1% | |
| 5 | Heat from direct flame, convection currents | 2 | 5.1% | |
| 6 | Hot or smoldering object, other | 1 | 2.6% | |
| 7 | Heat, spark from friction | 1 | 2.6% | |
| 8 | Incendiary device | 1 | 2.6% | |
| 9 | Flame/torch used for lighting | 1 | 2.6% | |
| 10 | Conducted heat from another fire | 1 | 2.6% | |
| 11 | All other sources | 1 | 2.6% |
Largest single-incident property losses reported by Corunna departments in 2025. These 6 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $140,000 | Building fires | Significant | Investigated |
| 2 | $125,000 | Building fires | Significant | Investigated |
| 3 | $50,000 | Building fires | Significant | Investigated |
| 4 | $25,000 | Passenger vehicle fire | Significant | Investigated |
| 5 | $20,000 | Building fires | Significant | Investigated |
| 6 | $10,000 | Building fires | Significant | Investigated |
Per-capita rates let us compare apples to apples. Corunna sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 2,008 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2012 | Arson/incendiarism | 335 | 46.7 mi | |
| 2003 | Debris and open burning | 191 | 43.1 mi | |
| 2020 | Missing data/not specified/undetermined | 143 | 20.6 mi | |
| 1996 | Arson/incendiarism | 142 | 33.2 mi | |
| 2018 | Equipment and vehicle use | 100 | 28.9 mi | |
| 1996 | Arson/incendiarism | 96 | 46.7 mi | |
| 1996 | Debris and open burning | 80 | 15.2 mi | |
| 2003 | Equipment and vehicle use | 70 | 22.9 mi | |
| 2012 | Smoking | 64 | 46.8 mi | |
| 2009 | Debris and open burning | 63 | 48.1 mi | |
| 2019 | Equipment and vehicle use | 61 | 24.5 mi | |
| 2006 | Missing data/not specified/undetermined | 61 | 47.3 mi |
Top 3 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six Michigan cities with population within ±25% of Corunna. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Corunna.
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.