ZIP 51040 recorded 28 fire and hazmat incidents in 2025, 120 across 2021–2025. Primary county: Monona County, IA. FEMA NRI rates wildfire risk here as High.
120 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 21 | |
| 2022 | 25 | |
| 2023 | 24 | |
| 2024 | 22 | |
| 2025 | 28 |
Mar peaks. May dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 51040 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 26 | 21.7% | |
| 2 | Gas leak (natural gas or LPG) | 17 | 14.2% | |
| 3 | Forest, woods or wildland fire | 10 | 8.3% | |
| 4 | Passenger vehicle fire | 9 | 7.5% | |
| 5 | Grass fire | 6 | 5.0% |
For the 0 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 51040 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 18 | 31.0% | |
| 2 | Wildland, woods | 12 | 20.7% | |
| 3 | Engine area, running gear, wheel area | 8 | 13.8% | |
| 4 | Outside area, other | 3 | 5.2% | |
| 5 | Highway, parking lot, street: on or near | 3 | 5.2% | |
| 6 | Cargo/trunk area - all vehicles | 2 | 3.4% | |
| 7 | Railroad right of way: on or near | 2 | 3.4% | |
| 8 | Other | 1 | 1.7% | |
| 9 | All other areas | 9 | 15.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Flying brand, ember, spark | 11 | 19.0% | |
| 2 | Undetermined | 10 | 17.2% | |
| 3 | Hot ember or ash | 6 | 10.3% | |
| 4 | Flame/torch used for lighting | 5 | 8.6% | |
| 5 | Radiated, conducted heat from operating equipment | 3 | 5.2% | |
| 6 | Arcing | 3 | 5.2% | |
| 7 | Molten, hot material | 3 | 5.2% | |
| 8 | Heat from powered equipment, other | 2 | 3.4% | |
| 9 | All other sources | 15 | 25.9% |
Largest single-incident losses in ZIP 51040 across 2021–2025. These 2 fires alone account for 100% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $100,000 | Off-road vehicle or heavy equipment fire | 2025 | Significant |
| 2 | $27,000 | Passenger vehicle fire | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 51040.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Onawa | 106 |
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 — 120 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.