City vs city
Iroquois vs Shamrock Colony, SD
Iroquois currently scores 10 points higher overall than Shamrock Colony, with the largest gap in tornado.
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
Iroquois: 36/100 · Shamrock Colony: 26/100
Iroquois is 10 points higher.
Flood
Iroquois: 53/100 · Shamrock Colony: 49/100
Iroquois is 4 points higher.
Iroquois: FEMA NFHL flood zones: 15 features intersect this tile.
Shamrock Colony: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Iroquois: 21/100 · Shamrock Colony: 21/100
No gap.
Iroquois: Wind exposure derived from ingested design wind / climatology tiles.
Shamrock Colony: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Iroquois: 58/100 · Shamrock Colony: 45/100
Iroquois is 13 points higher.
Iroquois: Lightning exposure derived from ingested climatology tiles.
Shamrock Colony: Lightning exposure derived from ingested climatology tiles.
Tornado
Iroquois: 31/100 · Shamrock Colony: 4/100
Iroquois is 27 points higher.
Iroquois: Tornado risk derived from NOAA SPC historical reports.
Shamrock Colony: Tornado risk derived from NOAA SPC historical reports.
Hail
Iroquois: 39/100 · Shamrock Colony: 19/100
Iroquois is 20 points higher.
Iroquois: Hail risk derived from NOAA SPC historical reports.
Shamrock Colony: Hail risk derived from NOAA SPC historical reports.
Storm surge
Iroquois: Unavailable · Shamrock Colony: Unavailable
A score difference cannot be calculated without both sources.
Iroquois: Storm surge model is not available for this location yet.
Shamrock Colony: Storm surge model is not available for this location yet.
Wildfire
Iroquois: 28/100 · Shamrock Colony: 30/100
Shamrock Colony is 2 points higher.
Iroquois: Wildfire exposure derived from ingested fire potential tiles.
Shamrock Colony: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Iroquois: 19/100 · Shamrock Colony: 17/100
Iroquois is 2 points higher.
Iroquois: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Shamrock Colony: Air quality signal derived from the latest EPA AirNow combined AQI grid.