ZIP 57221 is served primarily by Hamlin County, SD — including Estelline. ZIP-level data is sparse — showing the Hamlin County aggregate. FEMA NRI rates wildfire risk here as Moderate.
Nov peaks. Jan dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 4 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 2 | 33.3% | |
| 2 | Accident, potential accident, other | 2 | 33.3% | |
| 3 | Off-road vehicle or heavy equipment fire | 1 | 16.7% | |
| 4 | Electrical wiring/equipment problem, other | 1 | 16.7% |
4 cities sit in Hamlin County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Estelline | 952 | 2 | 0 | A |
| 2 | Bryant | 749 | 0 | 0 | A+ |
| 3 | Lake Norden | 740 | 0 | 0 | A+ |
| 4 | Castlewood | 690 | 6 | 1 | A |
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 Hamlin 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.