City vs city
Jefferson vs North Sioux City, SD
Jefferson currently scores 4 points higher overall than North Sioux City, with the largest gap in flood.
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
Jefferson: 47/100 · North Sioux City: 43/100
Jefferson is 4 points higher.
Flood
Jefferson: 81/100 · North Sioux City: 10/100
Jefferson is 71 points higher.
Jefferson: FEMA NFHL flood zones: 11 features intersect this tile.
North Sioux City: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Jefferson: 20/100 · North Sioux City: 20/100
No gap.
Jefferson: Wind exposure derived from ingested design wind / climatology tiles.
North Sioux City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Jefferson: 44/100 · North Sioux City: 48/100
North Sioux City is 4 points higher.
Jefferson: Lightning exposure derived from ingested climatology tiles.
North Sioux City: Lightning exposure derived from ingested climatology tiles.
Tornado
Jefferson: 0/100 · North Sioux City: 54/100
North Sioux City is 54 points higher.
Jefferson: Tornado risk derived from NOAA SPC historical reports.
North Sioux City: Tornado risk derived from NOAA SPC historical reports.
Hail
Jefferson: 66/100 · North Sioux City: 90/100
North Sioux City is 24 points higher.
Jefferson: Hail risk derived from NOAA SPC historical reports.
North Sioux City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Jefferson: Unavailable · North Sioux City: Unavailable
A score difference cannot be calculated without both sources.
Jefferson: Storm surge model is not available for this location yet.
North Sioux City: Storm surge model is not available for this location yet.
Wildfire
Jefferson: 47/100 · North Sioux City: 52/100
North Sioux City is 5 points higher.
Jefferson: Wildfire exposure derived from ingested fire potential tiles.
North Sioux City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Jefferson: 25/100 · North Sioux City: 26/100
North Sioux City is 1 points higher.
Jefferson: Air quality signal derived from the latest EPA AirNow combined AQI grid.
North Sioux City: Air quality signal derived from the latest EPA AirNow combined AQI grid.