ZIP 55309 recorded 91 fire and hazmat incidents in 2025, 379 across 2021–2025. Primary county: Sherburne County, MN. FEMA NRI rates wildfire risk here as High.
379 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 101 | |
| 2022 | 69 | |
| 2023 | 114 | |
| 2024 | 4 | |
| 2025 | 91 |
Apr peaks. Oct dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 55309 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 109 | 28.8% | |
| 2 | Building fires | 53 | 14.0% | |
| 3 | Grass fire | 46 | 12.1% | |
| 4 | Carbon monoxide incident | 32 | 8.4% | |
| 5 | Power line down | 27 | 7.1% |
For the 10 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 55309 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 19 | 28.4% | |
| 2 | Vehicle storage area; garage, carport | 7 | 10.4% | |
| 3 | Common room, den, family room, living room, lounge | 5 | 7.5% | |
| 4 | Open area - outside; included are farmland, field | 5 | 7.5% | |
| 5 | Wall surface: exterior | 3 | 4.5% | |
| 6 | Cooking area, kitchen | 2 | 3.0% | |
| 7 | Storage room, area, tank, or bin | 2 | 3.0% | |
| 8 | Chute/container - trash, rubbish, waste | 2 | 3.0% | |
| 9 | All other areas | 22 | 32.8% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 26 | 38.8% | |
| 2 | Arcing | 9 | 13.4% | |
| 3 | Hot ember or ash | 7 | 10.4% | |
| 4 | Spark, ember or flame from operating equipment | 5 | 7.5% | |
| 5 | Radiated, conducted heat from operating equipment | 3 | 4.5% | |
| 6 | Fireworks | 3 | 4.5% | |
| 7 | Heat from powered equipment, other | 2 | 3.0% | |
| 8 | Cigarette | 2 | 3.0% | |
| 9 | All other sources | 10 | 14.9% |
Largest single-incident losses in ZIP 55309 across 2021–2025. These 8 fires alone account for 646% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,111,680 | Building fires | 2021 | Major |
| 2 | $600,000 | Building fires | 2021 | Major |
| 3 | $325,000 | Building fires | 2021 | Major |
| 4 | $300,000 | Building fires | 2023 | Major |
| 5 | $275,000 | Building fires | 2021 | Major |
| 6 | $180,000 | Building fires | 2025 | Significant |
| 7 | $173,803 | Building fires | 2023 | Significant |
| 8 | $170,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 55309.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Big Lake | 355 |
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 — 379 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.