In 2025, fire departments serving Unionville responded to 17 fire and hazmat incidents — from cooking fires to gas leaks to a single $20K building blaze. Here's the full picture.
Passenger vehicle fire lead by count. Building fires lead by dollars. Together the top five categories make up about 71% of all calls.
Mar peaks. Feb dips. Watch for the typical fall climb starting in October.
134 incidents 2021–2025. Peak year was 2022. $1.8M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 27 | — | |
| 2022 | 50 | +85.2% | |
| 2023 | 25 | -50.0% | |
| 2024* | 15 | — | |
| 2025 | 17 | — |
* Well below Unionville'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 1 building fires Unionville departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 99 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 | 32 | 32.3% | |
| 2 | Outside area, other | 24 | 24.2% | |
| 3 | Engine area, running gear, wheel area | 9 | 9.1% | |
| 4 | Open area - outside; included are farmland, field | 8 | 8.1% | |
| 5 | Storage area, other | 3 | 3.0% | |
| 6 | Cooking area, kitchen | 2 | 2.0% | |
| 7 | Laundry area, wash house (laundry) | 2 | 2.0% | |
| 8 | Wall assembly | 2 | 2.0% | |
| 9 | Wall surface: exterior | 2 | 2.0% | |
| 10 | Vehicle area, other | 2 | 2.0% | |
| 11 | All other areas | 13 | 13.1% |
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 Unionville mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 65 | 65.7% | |
| 2 | Heat from powered equipment, other | 4 | 4.0% | |
| 3 | Radiated heat from another fire | 4 | 4.0% | |
| 4 | Arcing | 3 | 3.0% | |
| 5 | Cigarette lighter | 3 | 3.0% | |
| 6 | Heat from direct flame, convection currents | 3 | 3.0% | |
| 7 | Hot ember or ash | 2 | 2.0% | |
| 8 | Fireworks | 2 | 2.0% | |
| 9 | Heat from other open flame or smoking materials | 2 | 2.0% | |
| 10 | Match | 2 | 2.0% | |
| 11 | All other sources | 9 | 9.1% |
Largest single-incident property losses reported by Unionville departments in 2025. These 6 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $20,000 | Passenger vehicle fire | Significant | Investigated |
| 2 | $15,000 | Passenger vehicle fire | Significant | Investigated |
| 3 | $10,000 | Building fires | Significant | Investigated |
| 4 | $10,000 | Road freight or transport vehicle fire | Significant | Investigated |
| 5 | $6,500 | Passenger vehicle fire | Significant | Investigated |
| 6 | $4,200 | Water vehicle fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Unionville sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 6,577 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2014 | Arson/incendiarism | 748 | 45.9 mi | |
| 2016 | Missing data/not specified/undetermined | 735 | 49.3 mi | |
| 2001 | Arson/incendiarism | 332 | 48.4 mi | |
| 2016 | Missing data/not specified/undetermined | 328 | 22.3 mi | |
| 2016 | Arson/incendiarism | 312 | 49.2 mi | |
| 2001 | Arson/incendiarism | 296 | 49.8 mi | |
| 2006 | Arson/incendiarism | 286 | 48.9 mi | |
| 1998 | Arson/incendiarism | 260 | 48.0 mi | |
| 1995 | Smoking | 250 | 45.0 mi | |
| 2015 | Arson/incendiarism | 235 | 45.7 mi | |
| 2013 | Arson/incendiarism | 224 | 49.0 mi | |
| 2017 | Debris and open burning | 220 | 49.9 mi |
Top 4 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six Tennessee cities with population within ±25% of Unionville. 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.