City vs city
Flandreau vs Sioux Falls, SD
Sioux Falls currently scores 9 points higher overall than Flandreau, 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
Flandreau: 41/100 · Sioux Falls: 50/100
Sioux Falls is 9 points higher.
Flood
Flandreau: 67/100 · Sioux Falls: 52/100
Flandreau is 15 points higher.
Flandreau: FEMA NFHL flood zones: 8 features intersect this tile.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Flandreau: 20/100 · Sioux Falls: 20/100
No gap.
Flandreau: Wind exposure derived from ingested design wind / climatology tiles.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Flandreau: 64/100 · Sioux Falls: 46/100
Flandreau is 18 points higher.
Flandreau: Lightning exposure derived from ingested climatology tiles.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Flandreau: 4/100 · Sioux Falls: 58/100
Sioux Falls is 54 points higher.
Flandreau: Tornado risk derived from NOAA SPC historical reports.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Flandreau: 68/100 · Sioux Falls: 100/100
Sioux Falls is 32 points higher.
Flandreau: Hail risk derived from NOAA SPC historical reports.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Flandreau: Unavailable · Sioux Falls: Unavailable
A score difference cannot be calculated without both sources.
Flandreau: Storm surge model is not available for this location yet.
Sioux Falls: Storm surge model is not available for this location yet.
Wildfire
Flandreau: 43/100 · Sioux Falls: 51/100
Sioux Falls is 8 points higher.
Flandreau: Wildfire exposure derived from ingested fire potential tiles.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Flandreau: 20/100 · Sioux Falls: 21/100
Sioux Falls is 1 points higher.
Flandreau: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Sioux Falls: Air quality signal derived from the latest EPA AirNow combined AQI grid.