City vs city
Sioux Falls vs Viborg, SD
Sioux Falls currently scores 3 points higher overall than Viborg, 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 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
Sioux Falls: 50/100 · Viborg: 47/100
Sioux Falls is 3 points higher.
Flood
Sioux Falls: 52/100 · Viborg: 94/100
Viborg is 42 points higher.
Sioux Falls: FEMA NFHL flood zones: 17 features intersect this tile.
Viborg: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Sioux Falls: 20/100 · Viborg: 20/100
No gap.
Sioux Falls: Wind exposure derived from ingested design wind / climatology tiles.
Viborg: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Sioux Falls: 46/100 · Viborg: 39/100
Sioux Falls is 7 points higher.
Sioux Falls: Lightning exposure derived from ingested climatology tiles.
Viborg: Lightning exposure derived from ingested climatology tiles.
Tornado
Sioux Falls: 58/100 · Viborg: 0/100
Sioux Falls is 58 points higher.
Sioux Falls: Tornado risk derived from NOAA SPC historical reports.
Viborg: Tornado risk derived from NOAA SPC historical reports.
Hail
Sioux Falls: 100/100 · Viborg: 58/100
Sioux Falls is 42 points higher.
Sioux Falls: Hail risk derived from NOAA SPC historical reports.
Viborg: Hail risk derived from NOAA SPC historical reports.
Storm surge
Sioux Falls: Unavailable · Viborg: Unavailable
A score difference cannot be calculated without both sources.
Sioux Falls: Storm surge model is not available for this location yet.
Viborg: Storm surge model is not available for this location yet.
Wildfire
Sioux Falls: 51/100 · Viborg: 51/100
No gap.
Sioux Falls: Wildfire exposure derived from ingested fire potential tiles.
Viborg: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Sioux Falls: 21/100 · Viborg: 21/100
No gap.
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.
Viborg: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.