ZIP 51645 is served primarily by Fremont County, IA — including Hamburg. ZIP-level data is sparse — showing the Fremont County aggregate.
Jan peaks. Sep dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Grass fire | 33 | 26.0% | |
| 2 | Building fires | 30 | 23.6% | |
| 3 | Brush, or brush and grass mixture fire | 24 | 18.9% | |
| 4 | Passenger vehicle fire | 8 | 6.3% | |
| 5 | Prescribed fire | 5 | 3.9% |
3 cities sit in Fremont 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 | |
|---|---|---|---|
| Mills County | IA | 1.00 | FIPS 19129 |
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 Fremont 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.