ZIP 55040 recorded 70 fire and hazmat incidents in 2025, 393 across 2021–2025. Primary county: Isanti County, MN. FEMA NRI rates wildfire risk here as High.
393 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 84 | |
| 2022 | 86 | |
| 2023 | 71 | |
| 2024 | 82 | |
| 2025 | 70 |
Mar peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 55040 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Authorized controlled burning | 50 | 12.7% | |
| 2 | Building fires | 40 | 10.2% | |
| 3 | Gas leak (natural gas or LPG) | 40 | 10.2% | |
| 4 | Grass fire | 32 | 8.1% | |
| 5 | Carbon monoxide incident | 26 | 6.6% |
For the 7 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 55040 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 22 | 19.6% | |
| 2 | Engine area, running gear, wheel area | 18 | 16.1% | |
| 3 | Open area - outside; included are farmland, field | 15 | 13.4% | |
| 4 | Outside area, other | 7 | 6.2% | |
| 5 | Vehicle storage area; garage, carport | 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 | All other areas | 31 | 27.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 64 | 57.1% | |
| 2 | Radiated, conducted heat from operating equipment | 12 | 10.7% | |
| 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 | Heat from direct flame, convection currents | 3 | 2.7% | |
| 8 | Spark, ember or flame from operating equipment | 2 | 1.8% | |
| 9 | All other sources | 12 | 10.7% |
Largest single-incident losses in ZIP 55040 across 2021–2025. These 8 fires alone account for 260% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Building fires | 2023 | Major |
| 2 | $150,000 | Building fires | 2023 | Significant |
| 3 | $110,000 | Building fires | 2025 | Significant |
| 4 | $100,000 | Building fires | 2022 | Significant |
| 5 | $100,000 | Building fires | 2025 | Significant |
| 6 | $92,000 | Building fires | 2023 | Significant |
| 7 | $80,000 | Building fires | 2023 | Significant |
| 8 | $70,000 | Building fires | 2023 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 55040.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Isanti | 368 |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 393 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.