ZIP 52561 is served primarily by Mahaska County, IA — including Oskaloosa. ZIP-level data is sparse — showing the Mahaska County aggregate. FEMA NRI rates wildfire risk here as Moderate.
Mar peaks. Feb dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Authorized controlled burning | 39 | 13.8% | |
| 2 | Power line down | 35 | 12.4% | |
| 3 | Unauthorized burning | 29 | 10.3% | |
| 4 | Vehicle accident, general cleanup | 28 | 9.9% | |
| 5 | Brush, or brush and grass mixture fire | 23 | 8.2% |
4 cities sit in Mahaska County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Oskaloosa | 11,492 | 222 | 11 | B- |
| 2 | New Sharon | 1,183 | 38 | 6 | C+ |
| 3 | Fremont | 810 | 2 | 1 | A+ |
| 4 | University Park | 566 | 0 | 0 | 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 Mahaska 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.