ZIP 51433 recorded 7 fire and hazmat incidents in 2025, 28 across 2021–2025. Primary county: Calhoun County, IA.
28 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 2 | |
| 2022 | 4 | |
| 2023 | 8 | |
| 2024 | 7 | |
| 2025 | 7 |
Mar peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 51433 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Fire, other | 5 | 17.9% | |
| 2 | Building fires | 3 | 10.7% | |
| 3 | Grass fire | 3 | 10.7% | |
| 4 | Cultivated vegetation, crop fire, other | 3 | 10.7% | |
| 5 | Authorized controlled burning | 3 | 10.7% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 51433 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 6 | 37.5% | |
| 2 | Undetermined | 4 | 25.0% | |
| 3 | Wall surface: exterior | 2 | 12.5% | |
| 4 | Storage area, other | 1 | 6.2% | |
| 5 | Storage room, area, tank, or bin | 1 | 6.2% | |
| 6 | Vehicle storage area; garage, carport | 1 | 6.2% | |
| 7 | Engine area, running gear, wheel area | 1 | 6.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 12 | 75.0% | |
| 2 | Hot or smoldering object, other | 1 | 6.2% | |
| 3 | Flame/torch used for lighting | 1 | 6.2% | |
| 4 | Chemical reaction | 1 | 6.2% | |
| 5 | Heat from direct flame, convection currents | 1 | 6.2% |
Largest single-incident losses in ZIP 51433 across 2021–2025. These 2 fires alone account for 0% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $30,000 | Building fires | 2023 | Significant |
| 2 | $20,000 | Building fires | 2022 | Significant |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Sac County | IA | 1.00 | FIPS 19161 |
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 — 28 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.