City vs city
Dakota Dunes vs North Sioux City, SD
North Sioux City currently scores 7 points higher overall than Dakota Dunes, 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
Dakota Dunes: 36/100 · North Sioux City: 43/100
North Sioux City is 7 points higher.
Flood
Dakota Dunes: 5/100 · North Sioux City: 10/100
North Sioux City is 5 points higher.
Dakota Dunes: FEMA NFHL flood zones: 2 features intersect this tile.
North Sioux City: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Dakota Dunes: 20/100 · North Sioux City: 20/100
No gap.
Dakota Dunes: Wind exposure derived from ingested design wind / climatology tiles.
North Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Dakota Dunes: 49/100 · North Sioux City: 48/100
Dakota Dunes is 1 points higher.
Dakota Dunes: Lightning exposure derived from ingested climatology tiles.
North Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Dakota Dunes: 4/100 · North Sioux City: 54/100
North Sioux City is 50 points higher.
Dakota Dunes: Tornado risk derived from NOAA SPC historical reports.
North Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Dakota Dunes: 100/100 · North Sioux City: 90/100
Dakota Dunes is 10 points higher.
Dakota Dunes: Hail risk derived from NOAA SPC historical reports.
North Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Dakota Dunes: Unavailable · North Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Dakota Dunes: Storm surge model is not available for this location yet.
North Sioux City: Storm surge model is not available for this location yet.
Wildfire
Dakota Dunes: 50/100 · North Sioux City: 52/100
North Sioux City is 2 points higher.
Dakota Dunes: Wildfire exposure derived from ingested fire potential tiles.
North Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Dakota Dunes: 26/100 · North Sioux City: 26/100
No gap.
Dakota Dunes: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
North Sioux City: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.