In 2025, fire departments serving Middleton responded to 65 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 63% of all calls.
Mar peaks. May dips. Watch for the typical fall climb starting in October.
450 incidents 2021–2025. Peak year was 2022. $933K cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 129 | — | |
| 2022 | 141 | +9.3% | |
| 2023* | 48 | — | |
| 2024 | 67 | — | |
| 2025 | 65 | -3.0% |
* Well below Middleton'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 16 building fires Middleton departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 74 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 | Outside area, other | 25 | 33.8% | |
| 2 | Undetermined | 5 | 6.8% | |
| 3 | Bedroom - < 5 persons; included are jail or prison | 4 | 5.4% | |
| 4 | Cooking area, kitchen | 4 | 5.4% | |
| 5 | Vehicle area, other | 4 | 5.4% | |
| 6 | Engine area, running gear, wheel area | 4 | 5.4% | |
| 7 | Highway, parking lot, street: on or near | 3 | 4.1% | |
| 8 | Courtyard, patio, porch, terrace | 3 | 4.1% | |
| 9 | Open area - outside; included are farmland, field | 3 | 4.1% | |
| 10 | Common room, den, family room, living room, lounge | 2 | 2.7% | |
| 11 | All other areas | 17 | 23.0% |
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 Middleton mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 58 | 78.4% | |
| 2 | Heat from powered equipment, other | 6 | 8.1% | |
| 3 | Radiated, conducted heat from operating equipment | 2 | 2.7% | |
| 4 | Arcing | 2 | 2.7% | |
| 5 | Cigarette | 2 | 2.7% | |
| 6 | Heat source: other | 1 | 1.4% | |
| 7 | Spark, ember or flame from operating equipment | 1 | 1.4% | |
| 8 | Hot ember or ash | 1 | 1.4% | |
| 9 | Match | 1 | 1.4% |
Largest single-incident property losses reported by Middleton departments in 2025. These 1 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $200,000 | Building fires | Significant | Investigated |
Per-capita rates let us compare apples to apples. Middleton sits below the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 9,630 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 1999 | Arson/incendiarism | 1,400 | 40.0 mi | |
| 2000 | Equipment and vehicle use | 1,100 | 26.6 mi | |
| 2003 | Arson/incendiarism | 1,100 | 34.9 mi | |
| 2009 | Missing data/not specified/undetermined | 617 | 31.1 mi | |
| 2006 | Debris and open burning | 612 | 49.0 mi | |
| 1999 | Missing data/not specified/undetermined | 580 | 27.2 mi | |
| 2016 | Missing data/not specified/undetermined | 500 | 42.7 mi | |
| 2003 | Missing data/not specified/undetermined | 500 | 8.8 mi | |
| 2003 | Arson/incendiarism | 484 | 34.1 mi | |
| 2003 | Missing data/not specified/undetermined | 300 | 34.8 mi | |
| 2003 | Arson/incendiarism | 290 | 28.0 mi | |
| 2012 | Arson/incendiarism | 254 | 30.6 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 Middleton. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Middleton.
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.