City vs city
Castlewood vs Sioux Falls, SD
Sioux Falls currently scores 6 points higher overall than Castlewood, 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
Castlewood: 44/100 · Sioux Falls: 50/100
Sioux Falls is 6 points higher.
Flood
Castlewood: 79/100 · Sioux Falls: 52/100
Castlewood is 27 points higher.
Castlewood: FEMA NFHL flood zones: 12 features intersect this tile.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Wind
Castlewood: 20/100 · Sioux Falls: 20/100
No gap.
Castlewood: Wind exposure derived from ingested design wind / climatology tiles.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Castlewood: 49/100 · Sioux Falls: 46/100
Castlewood is 3 points higher.
Castlewood: Lightning exposure derived from ingested climatology tiles.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Tornado
Castlewood: 31/100 · Sioux Falls: 58/100
Sioux Falls is 27 points higher.
Castlewood: Tornado risk derived from NOAA SPC historical reports.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Hail
Castlewood: 71/100 · Sioux Falls: 100/100
Sioux Falls is 29 points higher.
Castlewood: Hail risk derived from NOAA SPC historical reports.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Storm surge
Castlewood: Unavailable · Sioux Falls: Unavailable
A score difference cannot be calculated without both sources.
Castlewood: Storm surge model is not available for this location yet.
Sioux Falls: Storm surge model is not available for this location yet.
Wildfire
Castlewood: 39/100 · Sioux Falls: 51/100
Sioux Falls is 12 points higher.
Castlewood: Wildfire exposure derived from ingested fire potential tiles.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Castlewood: 21/100 · Sioux Falls: 21/100
No gap.
Castlewood: 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.