In 2025, fire departments serving Onamia responded to 42 fire and hazmat incidents — from cooking fires to gas leaks to a single $250K 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 69% of all calls.
Nov peaks. Apr dips. Watch for the typical fall climb starting in October.
173 incidents 2021–2025. Peak year was 2021. $3.3M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 44 | — | |
| 2022 | 36 | -18.2% | |
| 2023 | 31 | -13.9% | |
| 2024* | 20 | — | |
| 2025 | 42 | — |
* Well below Onamia'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 12 building fires Onamia departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 92 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 | 37 | 40.2% | |
| 2 | Engine area, running gear, wheel area | 20 | 21.7% | |
| 3 | Vehicle storage area; garage, carport | 4 | 4.3% | |
| 4 | Cargo/trunk area - all vehicles | 3 | 3.3% | |
| 5 | Open area - outside; included are farmland, field | 3 | 3.3% | |
| 6 | Function area, other | 2 | 2.2% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 2 | 2.2% | |
| 8 | Laundry area, wash house (laundry) | 2 | 2.2% | |
| 9 | Storage room, area, tank, or bin | 2 | 2.2% | |
| 10 | Incinerator area | 2 | 2.2% | |
| 11 | All other areas | 15 | 16.3% |
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 Onamia mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 68 | 73.9% | |
| 2 | Arcing | 3 | 3.3% | |
| 3 | Radiated heat from another fire | 3 | 3.3% | |
| 4 | Flying brand, ember, spark | 3 | 3.3% | |
| 5 | Spark, ember or flame from operating equipment | 2 | 2.2% | |
| 6 | Radiated, conducted heat from operating equipment | 2 | 2.2% | |
| 7 | Heat source: other | 1 | 1.1% | |
| 8 | Heat from powered equipment, other | 1 | 1.1% | |
| 9 | Hot or smoldering object, other | 1 | 1.1% | |
| 10 | Heat, spark from friction | 1 | 1.1% | |
| 11 | All other sources | 7 | 7.6% |
Largest single-incident property losses reported by Onamia departments in 2025. These 8 fires alone account for 97% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $250,000 | Building fires | Major | Investigated |
| 2 | $200,000 | Building fires | Significant | Investigated |
| 3 | $200,000 | Building fires | Significant | Investigated |
| 4 | $200,000 | Building fires | Significant | Investigated |
| 5 | $30,624 | Building fires | Significant | Investigated |
| 6 | $29,000 | Passenger vehicle fire | Significant | Investigated |
| 7 | $25,000 | Building fires | Significant | Investigated |
| 8 | $21,000 | Fire in mobile home used as fixed residence | Significant | Investigated |
Per-capita rates let us compare apples to apples. Onamia sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 22,234 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2015 | Missing data/not specified/undetermined | 3,200 | 46.1 mi | |
| 1992 | Debris and open burning | 1,737 | 20.2 mi | |
| 1996 | Recreation and ceremony | 1,460 | 7.9 mi | |
| 1996 | Debris and open burning | 1,299 | 42.0 mi | |
| 2002 | Missing data/not specified/undetermined | 1,260 | 33.0 mi | |
| 2003 | Arson/incendiarism | 1,250 | 17.0 mi | |
| 1997 | Arson/incendiarism | 930 | 40.7 mi | |
| 2004 | Railroad operations and maintenance | 835 | 31.5 mi | |
| 1992 | Arson/incendiarism | 830 | 26.3 mi | |
| 1998 | Arson/incendiarism | 750 | 26.9 mi | |
| 2004 | Debris and open burning | 710 | 18.8 mi | |
| 1999 | Equipment and vehicle use | 700 | 26.6 mi |
Top 1 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
| # | ZIP | 5-yr incidents | |
|---|---|---|---|
| 1 | 56359 | 173 |
Six Minnesota cities with population within ±25% of Onamia. Useful comparison targets — same state, similar size, different fire profile.
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.