ZIP 59403 is served primarily by Cascade County, MT — including Great Falls. ZIP-level data is sparse — showing the Cascade County aggregate. FEMA NRI rates wildfire risk here as Very High.
Oct 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 | Power line down | 51 | 19.2% | |
| 2 | Hazardous condition, other | 44 | 16.6% | |
| 3 | Carbon monoxide incident | 38 | 14.3% | |
| 4 | Gas leak (natural gas or LPG) | 22 | 8.3% | |
| 5 | Building fires | 21 | 7.9% |
8 cities sit in Cascade County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Great Falls | 60,373 | 253 | 19 | B+ |
| 2 | Malmstrom AFB | 4,281 | 0 | 0 | — |
| 3 | Sun Prairie | 1,366 | 0 | 0 | A+ |
| 4 | Vaughn | 975 | 1 | 0 | A- |
| 5 | Ulm | 919 | 1 | 0 | A+ |
| 6 | Black Eagle | 672 | 1 | 0 | C+ |
| 7 | Cascade | 569 | 8 | 1 | C |
| 8 | Belt | 532 | 0 | 0 | D |
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 Cascade 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.