In 2025, fire departments serving Isanti responded to 53 fire and hazmat incidents — from cooking fires to gas leaks to a single $110K building blaze. Here's the full picture.
Gas leak (natural gas or LPG) lead by count. Building fires lead by dollars. Together the top five categories make up about 64% of all calls.
Mar peaks. Jul dips. Watch for the typical fall climb starting in October.
369 incidents 2021–2025. Peak year was 2022. $2.0M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 82 | — | |
| 2022 | 83 | +1.2% | |
| 2023 | 70 | -15.7% | |
| 2024 | 81 | +15.7% | |
| 2025 | 53 | -34.6% |
For the 7 building fires Isanti departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 111 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 | 22 | 19.8% | |
| 2 | Engine area, running gear, wheel area | 18 | 16.2% | |
| 3 | Open area - outside; included are farmland, field | 15 | 13.5% | |
| 4 | Vehicle storage area; garage, carport | 6 | 5.4% | |
| 5 | Outside area, other | 6 | 5.4% | |
| 6 | Wall surface: exterior | 5 | 4.5% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 4 | 3.6% | |
| 8 | Exterior, exposed surface | 4 | 3.6% | |
| 9 | Heating room or area, water heater area | 3 | 2.7% | |
| 10 | Operator/passenger area of transportation equip. | 3 | 2.7% | |
| 11 | All other areas | 25 | 22.5% |
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 Isanti mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 64 | 57.7% | |
| 2 | Radiated, conducted heat from operating equipment | 12 | 10.8% | |
| 3 | Hot ember or ash | 6 | 5.4% | |
| 4 | Heat from powered equipment, other | 5 | 4.5% | |
| 5 | Arcing | 4 | 3.6% | |
| 6 | Hot or smoldering object, other | 4 | 3.6% | |
| 7 | Spark, ember or flame from operating equipment | 2 | 1.8% | |
| 8 | Chemical reaction | 2 | 1.8% | |
| 9 | Lightning | 2 | 1.8% | |
| 10 | Heat from direct flame, convection currents | 2 | 1.8% | |
| 11 | All other sources | 8 | 7.2% |
Largest single-incident property losses reported by Isanti departments in 2025. These 8 fires alone account for 99% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $110,000 | Building fires | Significant | Investigated |
| 2 | $100,000 | Building fires | Significant | Investigated |
| 3 | $50,000 | Building fires | Significant | Investigated |
| 4 | $50,000 | Building fires | Significant | Investigated |
| 5 | $30,000 | Building fires | Significant | Investigated |
| 6 | $20,000 | Fire in motor home, camper, recreational vehicle | Significant | Investigated |
| 7 | $10,000 | Passenger vehicle fire | Significant | Investigated |
| 8 | $5,000 | Gasoline or other flammable liquid spill | Significant | Investigated |
Per-capita rates let us compare apples to apples. Isanti sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 26,914 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2000 | Debris and open burning | 8,513 | 13.5 mi | |
| 2009 | Arson/incendiarism | 2,550 | 15.5 mi | |
| 1992 | Debris and open burning | 1,737 | 44.5 mi | |
| 1996 | Recreation and ceremony | 1,460 | 38.2 mi | |
| 1996 | Debris and open burning | 1,299 | 20.7 mi | |
| 2003 | Arson/incendiarism | 1,250 | 45.7 mi | |
| 2004 | Recreation and ceremony | 1,000 | 46.1 mi | |
| 2004 | Railroad operations and maintenance | 835 | 22.2 mi | |
| 2004 | Debris and open burning | 710 | 44.3 mi | |
| 1993 | Arson/incendiarism | 680 | 44.2 mi | |
| 2013 | Missing data/not specified/undetermined | 656 | 38.8 mi | |
| 1993 | Arson/incendiarism | 640 | 37.7 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 Minnesota cities with population within ±25% of Isanti. 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.