ZIP 51103 recorded 123 fire and hazmat incidents in 2025, 699 across 2021–2025. Primary county: Woodbury County, IA. FEMA NRI rates wildfire risk here as Very High.
699 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 141 | |
| 2022 | 115 | |
| 2023 | 137 | |
| 2024 | 183 | |
| 2025 | 123 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 51103 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 228 | 32.6% | |
| 2 | Building fires | 73 | 10.4% | |
| 3 | Power line down | 40 | 5.7% | |
| 4 | Outside rubbish, trash or waste fire | 36 | 5.2% | |
| 5 | Carbon monoxide incident | 34 | 4.9% |
For the 8 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 51103 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 26 | 13.1% | |
| 2 | Open area - outside; included are farmland, field | 20 | 10.1% | |
| 3 | Engine area, running gear, wheel area | 15 | 7.5% | |
| 4 | Cooking area, kitchen | 13 | 6.5% | |
| 5 | Attic: vacant, crawl space above top story, cupola | 11 | 5.5% | |
| 6 | Outside area, other | 11 | 5.5% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 10 | 5.0% | |
| 8 | Wall surface: exterior | 8 | 4.0% | |
| 9 | All other areas | 85 | 42.7% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 84 | 42.2% | |
| 2 | Arcing | 19 | 9.5% | |
| 3 | Fireworks | 14 | 7.0% | |
| 4 | Cigarette lighter | 14 | 7.0% | |
| 5 | Spark, ember or flame from operating equipment | 9 | 4.5% | |
| 6 | Hot ember or ash | 9 | 4.5% | |
| 7 | Heat from other open flame or smoking materials | 8 | 4.0% | |
| 8 | Heat source: other | 6 | 3.0% | |
| 9 | All other sources | 36 | 18.1% |
Largest single-incident losses in ZIP 51103 across 2021–2025. These 8 fires alone account for 882% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $150,000 | Building fires | 2024 | Significant |
| 2 | $127,000 | Building fires | 2024 | Significant |
| 3 | $127,000 | Building fires | 2024 | Significant |
| 4 | $127,000 | Building fires | 2024 | Significant |
| 5 | $127,000 | Building fires | 2024 | Significant |
| 6 | $127,000 | Building fires | 2024 | Significant |
| 7 | $85,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 8 | $85,000 | Road freight or transport vehicle fire | 2024 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 51103.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Sioux City | 699 |
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 — 699 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.