ZIP 51201 recorded 48 fire and hazmat incidents in 2025, 163 across 2021–2025. Primary county: O'Brien County, IA.
163 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 2 | |
| 2022 | 50 | |
| 2023 | 21 | |
| 2024 | 42 | |
| 2025 | 48 |
Apr peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 51201 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 33 | 20.2% | |
| 2 | Brush, or brush and grass mixture fire | 13 | 8.0% | |
| 3 | Grass fire | 10 | 6.1% | |
| 4 | Passenger vehicle fire | 9 | 5.5% | |
| 5 | Carbon monoxide incident | 8 | 4.9% |
For the 9 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 51201 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 14 | 16.3% | |
| 2 | Open area - outside; included are farmland, field | 12 | 14.0% | |
| 3 | Undetermined | 9 | 10.5% | |
| 4 | Outside area, other | 7 | 8.1% | |
| 5 | Cooking area, kitchen | 6 | 7.0% | |
| 6 | Vehicle area, other | 4 | 4.7% | |
| 7 | Railroad right of way: on or near | 4 | 4.7% | |
| 8 | Bedroom - < 5 persons; included are jail or prison | 3 | 3.5% | |
| 9 | All other areas | 27 | 31.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Heat from powered equipment, other | 17 | 19.8% | |
| 2 | Undetermined | 17 | 19.8% | |
| 3 | Hot ember or ash | 15 | 17.4% | |
| 4 | Radiated, conducted heat from operating equipment | 8 | 9.3% | |
| 5 | Spark, ember or flame from operating equipment | 7 | 8.1% | |
| 6 | Arcing | 7 | 8.1% | |
| 7 | Hot or smoldering object, other | 5 | 5.8% | |
| 8 | Heat source: other | 2 | 2.3% | |
| 9 | All other sources | 8 | 9.3% |
Largest single-incident losses in ZIP 51201 across 2021–2025. These 8 fires alone account for 186% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $150,000 | Building fires | 2022 | Significant |
| 2 | $150,000 | Building fires | 2024 | Significant |
| 3 | $150,000 | Building fires | 2024 | Significant |
| 4 | $120,000 | Building fires | 2025 | Significant |
| 5 | $100,000 | Building fires | 2022 | Significant |
| 6 | $100,000 | Building fires | 2025 | Significant |
| 7 | $100,000 | Fires in structures other than in a building | 2025 | Significant |
| 8 | $50,000 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 51201.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Sheldon | 163 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Sioux County | IA | 0.50 | FIPS 19167 |
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 — 163 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.