In 2025, fire departments serving Mosinee responded to 49 fire and hazmat incidents — from cooking fires to gas leaks to a single $200K 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 67% of all calls.
May peaks. Apr dips. Watch for the typical fall climb starting in October.
221 incidents 2021–2025. Peak year was 2022. $1.1M cumulative property loss. 3 civilian deaths.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 49 | — | |
| 2022 | 57 | +16.3% | |
| 2023 | 28 | -50.9% | |
| 2024 | 38 | +35.7% | |
| 2025 | 49 | +28.9% |
For the 17 building fires Mosinee departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 51 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 | 10 | 19.6% | |
| 2 | Engine area, running gear, wheel area | 7 | 13.7% | |
| 3 | Bedroom - < 5 persons; included are jail or prison | 4 | 7.8% | |
| 4 | Cooking area, kitchen | 3 | 5.9% | |
| 5 | Vehicle storage area; garage, carport | 3 | 5.9% | |
| 6 | Open area - outside; included are farmland, field | 3 | 5.9% | |
| 7 | Storage room, area, tank, or bin | 2 | 3.9% | |
| 8 | Vehicle area, other | 2 | 3.9% | |
| 9 | Operator/passenger area of transportation equip. | 2 | 3.9% | |
| 10 | Outside area, other | 2 | 3.9% | |
| 11 | All other areas | 13 | 25.5% |
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 Mosinee mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 24 | 47.1% | |
| 2 | Heat source: other | 6 | 11.8% | |
| 3 | Heat from powered equipment, other | 3 | 5.9% | |
| 4 | Arcing | 3 | 5.9% | |
| 5 | Hot ember or ash | 3 | 5.9% | |
| 6 | Spark, ember or flame from operating equipment | 2 | 3.9% | |
| 7 | Radiated, conducted heat from operating equipment | 2 | 3.9% | |
| 8 | Hot or smoldering object, other | 2 | 3.9% | |
| 9 | Heat, spark from friction | 1 | 2.0% | |
| 10 | Molten, hot material | 1 | 2.0% | |
| 11 | All other sources | 4 | 7.8% |
Largest single-incident property losses reported by Mosinee departments in 2025. These 4 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $200,000 | Building fires | Significant | Investigated |
| 2 | $25,000 | Building fires | Significant | Investigated |
| 3 | $10,000 | Fire in mobile home used as fixed residence | Significant | Investigated |
| 4 | $5,000 | Off-road vehicle or heavy equipment fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Mosinee sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 6,030 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2005 | Debris and open burning | 3,410 | 49.9 mi | |
| 1999 | Debris and open burning | 320 | 46.7 mi | |
| 1997 | Debris and open burning | 300 | 31.0 mi | |
| 1996 | Smoking | 187 | 11.1 mi | |
| 2000 | Missing data/not specified/undetermined | 170 | 31.5 mi | |
| 1998 | Arson/incendiarism | 160 | 38.6 mi | |
| 2008 | Arson/incendiarism | 153 | 10.0 mi | |
| 2004 | Railroad operations and maintenance | 109 | 17.4 mi | |
| 2012 | Missing data/not specified/undetermined | 101 | 25.4 mi | |
| 2000 | Arson/incendiarism | 91 | 36.8 mi | |
| 2001 | Equipment and vehicle use | 88 | 26.2 mi | |
| 2000 | Railroad operations and maintenance | 82 | 31.7 mi |
Top 2 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six Wisconsin cities with population within ±25% of Mosinee. Useful comparison targets — same state, similar size, different fire profile.
2 departments report to NFIRS for incidents in Mosinee.
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.