City vs city
Sioux Falls vs St. Francis, SD
Sioux Falls currently scores 10 points higher overall than St. Francis, with the largest gap in lightning.
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 · St. Francis: 40/100
Sioux Falls is 10 points higher.
Flood
Sioux Falls: 52/100 · St. Francis: Unavailable
A score difference cannot be calculated without both sources.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
St. Francis: Flood model is not available for this location yet.
Wind
Sioux Falls: 20/100 · St. Francis: 20/100
No gap.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
St. Francis: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux Falls: 46/100 · St. Francis: 25/100
Sioux Falls is 21 points higher.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
St. Francis: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux Falls: 58/100 · St. Francis: 46/100
Sioux Falls is 12 points higher.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
St. Francis: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux Falls: 100/100 · St. Francis: 93/100
Sioux Falls is 7 points higher.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
St. Francis: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux Falls: Unavailable · St. Francis: Unavailable
A score difference cannot be calculated without both sources.
Sioux Falls: Storm surge model is not available for this location yet.
St. Francis: Storm surge model is not available for this location yet.
Wildfire
Sioux Falls: 51/100 · St. Francis: 71/100
St. Francis is 20 points higher.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
St. Francis: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Sioux Falls: 21/100 · St. Francis: 25/100
St. Francis is 4 points higher.
Sioux Falls: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Francis: Air quality signal derived from the latest EPA AirNow combined AQI grid.