ZIP 57434 is served primarily by Brown County, SD — including Aberdeen. ZIP-level data is sparse — showing the Brown County aggregate. FEMA NRI rates wildfire risk here as High.
Nov peaks. Jan dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Carbon monoxide incident | 32 | 15.7% | |
| 2 | Power line down | 30 | 14.7% | |
| 3 | Gas leak (natural gas or LPG) | 29 | 14.2% | |
| 4 | Building fires | 18 | 8.8% | |
| 5 | Grass fire | 10 | 4.9% |
2 cities sit in Brown County. Click for the per-city NFIRS profile.
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Day County | SD | 1.00 | FIPS 46037 |
| Spink County | SD | 1.00 | FIPS 46115 |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Brown County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.