City vs city
Lake Madison vs Sioux Falls, SD
Sioux Falls currently scores 11 points higher overall than Lake Madison, 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
Lake Madison: 39/100 · Sioux Falls: 50/100
Sioux Falls is 11 points higher.
Flood
Lake Madison: 72/100 · Sioux Falls: 52/100
Lake Madison is 20 points higher.
Lake Madison: FEMA NFHL flood zones: 16 features intersect this tile.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Lake Madison: 20/100 · Sioux Falls: 20/100
No gap.
Lake Madison: Wind exposure derived from ingested design wind / climatology tiles.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Lake Madison: 68/100 · Sioux Falls: 46/100
Lake Madison is 22 points higher.
Lake Madison: Lightning exposure derived from ingested climatology tiles.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Lake Madison: 0/100 · Sioux Falls: 58/100
Sioux Falls is 58 points higher.
Lake Madison: Tornado risk derived from NOAA SPC historical reports.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Lake Madison: 19/100 · Sioux Falls: 100/100
Sioux Falls is 81 points higher.
Lake Madison: Hail risk derived from NOAA SPC historical reports.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Lake Madison: Unavailable · Sioux Falls: Unavailable
A score difference cannot be calculated without both sources.
Lake Madison: Storm surge model is not available for this location yet.
Sioux Falls: Storm surge model is not available for this location yet.
Wildfire
Lake Madison: 35/100 · Sioux Falls: 51/100
Sioux Falls is 16 points higher.
Lake Madison: Wildfire exposure derived from ingested fire potential tiles.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Lake Madison: 20/100 · Sioux Falls: 21/100
Sioux Falls is 1 points higher.
Lake Madison: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sioux Falls: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.