City vs city
Granger vs Polk City, IA
Polk City currently scores 8 points higher overall than Granger, with the largest gap in hail.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Granger: 39/100 · Polk City: 47/100
Polk City is 8 points higher.
Flood
Granger: 67/100 · Polk City: 82/100
Polk City is 15 points higher.
Granger: FEMA NFHL flood zones: 9 features intersect this tile.
Polk City: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Granger: 18/100 · Polk City: 18/100
No gap.
Granger: Wind exposure derived from ingested design wind / climatology tiles.
Polk City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Granger: 58/100 · Polk City: 58/100
No gap.
Granger: Lightning exposure derived from ingested climatology tiles.
Polk City: Lightning exposure derived from ingested climatology tiles.
Tornado
Granger: 4/100 · Polk City: 15/100
Polk City is 11 points higher.
Granger: Tornado risk derived from NOAA SPC historical reports.
Polk City: Tornado risk derived from NOAA SPC historical reports.
Hail
Granger: 68/100 · Polk City: 100/100
Polk City is 32 points higher.
Granger: Hail risk derived from NOAA SPC historical reports.
Polk City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Granger: Unavailable · Polk City: Unavailable
A score difference cannot be calculated without both sources.
Granger: Storm surge model is not available for this location yet.
Polk City: Storm surge model is not available for this location yet.
Wildfire
Granger: 29/100 · Polk City: 28/100
Granger is 1 points higher.
Granger: Wildfire exposure derived from ingested fire potential tiles.
Polk City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Granger: 30/100 · Polk City: 30/100
No gap.
Granger: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Polk City: Air quality signal derived from the latest EPA AirNow combined AQI grid.