ZIP 57621 recorded 1 fire and hazmat incidents in 2025, 13 across 2021–2025. Primary county: Corson County, SD. FEMA NRI rates wildfire risk here as High.
13 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 7 | |
| 2022 | 1 | |
| 2023 | 2 | |
| 2024 | 2 | |
| 2025 | 1 |
Jul peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 4 NFIRS incident types for ZIP 57621 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Fire, other | 5 | 38.5% | |
| 2 | Building fires | 4 | 30.8% | |
| 3 | Grass fire | 3 | 23.1% | |
| 4 | Passenger vehicle fire | 1 | 7.7% |
For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 57621 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 4 | 80.0% | |
| 2 | Open area - outside; included are farmland, field | 1 | 20.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 5 | 100.0% |
Largest single-incident losses in ZIP 57621 across 2021–2025. These 8 fires alone account for 927% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $8,000 | Building fires | 2021 | Significant |
| 2 | $5,000 | Passenger vehicle fire | 2021 | Significant |
| 3 | $5,000 | Building fires | 2024 | Significant |
| 4 | $5,000 | Building fires | 2024 | Significant |
| 5 | $3,000 | Building fires | 2025 | Significant |
| 6 | $1,000 | Grass fire | 2023 | Significant |
| 7 | $500 | Grass fire | 2021 | Significant |
| 8 | $300 | Grass fire | 2023 | Significant |
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 — 13 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.