City vs city
Sioux Falls vs Spring Valley Colony, SD
Sioux Falls currently scores 21 points higher overall than Spring Valley Colony, 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
Sioux Falls: 50/100 · Spring Valley Colony: 29/100
Sioux Falls is 21 points higher.
Flood
Sioux Falls: 52/100 · Spring Valley Colony: Unavailable
A score difference cannot be calculated without both sources.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Spring Valley Colony: Flood model is not available for this location yet.
Wind
Sioux Falls: 20/100 · Spring Valley Colony: 22/100
Spring Valley Colony is 2 points higher.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Spring Valley Colony: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux Falls: 46/100 · Spring Valley Colony: 39/100
Sioux Falls is 7 points higher.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Spring Valley Colony: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux Falls: 58/100 · Spring Valley Colony: 38/100
Sioux Falls is 20 points higher.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Spring Valley Colony: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux Falls: 100/100 · Spring Valley Colony: 42/100
Sioux Falls is 58 points higher.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Spring Valley Colony: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux Falls: Unavailable · Spring Valley Colony: Unavailable
A score difference cannot be calculated without both sources.
Sioux Falls: Storm surge model is not available for this location yet.
Spring Valley Colony: Storm surge model is not available for this location yet.
Wildfire
Sioux Falls: 51/100 · Spring Valley Colony: 35/100
Sioux Falls is 16 points higher.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Spring Valley Colony: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Sioux Falls: 21/100 · Spring Valley Colony: Unavailable
A score difference cannot be calculated without both sources.
Sioux Falls: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Spring Valley Colony: Air quality model is not available for this location yet.