ZIP 56535 is served primarily by Polk County, MN — including East Grand Forks. ZIP-level data is sparse — showing the Polk County aggregate. FEMA NRI rates wildfire risk here as Very High.
Apr peaks. Mar dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 31 | 17.9% | |
| 2 | Grass fire | 18 | 10.4% | |
| 3 | Gas leak (natural gas or LPG) | 16 | 9.2% | |
| 4 | Cooking fire, confined to container | 11 | 6.4% | |
| 5 | Brush, or brush and grass mixture fire | 10 | 5.8% |
5 cities sit in Polk County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | East Grand Forks | 9,118 | 47 | 7 | A |
| 2 | Crookston | 7,472 | 67 | 10 | B+ |
| 3 | Fosston | 1,299 | 25 | 3 | C |
| 4 | McIntosh | 842 | 1 | 1 | A+ |
| 5 | Fertile | 816 | 4 | 0 | C+ |
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 Polk 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.