City vs city
Iroquois vs Rapid City, SD
Rapid City currently scores 6 points higher overall than Iroquois, 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 uses an ingested EPA AirNow snapshot and may not reflect current conditions; 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
Iroquois: 36/100 · Rapid City: 42/100
Rapid City is 6 points higher.
Flood
Iroquois: 53/100 · Rapid City: 49/100
Iroquois is 4 points higher.
Iroquois: FEMA NFHL flood zones: 15 features intersect this tile.
Rapid City: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Iroquois: 21/100 · Rapid City: 20/100
Iroquois is 1 points higher.
Iroquois: Wind exposure derived from ingested design wind / climatology tiles.
Rapid City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Iroquois: 58/100 · Rapid City: 24/100
Iroquois is 34 points higher.
Iroquois: Lightning exposure derived from ingested climatology tiles.
Rapid City: Lightning exposure derived from ingested climatology tiles.
Tornado
Iroquois: 31/100 · Rapid City: 8/100
Iroquois is 23 points higher.
Iroquois: Tornado risk derived from NOAA SPC historical reports.
Rapid City: Tornado risk derived from NOAA SPC historical reports.
Hail
Iroquois: 39/100 · Rapid City: 100/100
Rapid City is 61 points higher.
Iroquois: Hail risk derived from NOAA SPC historical reports.
Rapid City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Iroquois: Unavailable · Rapid City: Unavailable
A score difference cannot be calculated without both sources.
Iroquois: Storm surge model is not available for this location yet.
Rapid City: Storm surge model is not available for this location yet.
Wildfire
Iroquois: 28/100 · Rapid City: 67/100
Rapid City is 39 points higher.
Iroquois: Wildfire exposure derived from ingested fire potential tiles.
Rapid City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Iroquois: 19/100 · Rapid City: 29/100
Rapid City is 10 points higher.
Iroquois: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rapid City: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.