City vs city
Jefferson vs Lake Koshkonong, WI
Lake Koshkonong currently scores 1 points higher overall than Jefferson, 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 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
Jefferson: 39/100 · Lake Koshkonong: 40/100
Lake Koshkonong is 1 points higher.
Flood
Jefferson: 38/100 · Lake Koshkonong: 95/100
Lake Koshkonong is 57 points higher.
Jefferson: FEMA NFHL flood zones: 4 features intersect this tile.
Lake Koshkonong: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Jefferson: 15/100 · Lake Koshkonong: 16/100
Lake Koshkonong is 1 points higher.
Jefferson: Wind exposure derived from ingested design wind / climatology tiles.
Lake Koshkonong: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Jefferson: 50/100 · Lake Koshkonong: 58/100
Lake Koshkonong is 8 points higher.
Jefferson: Lightning exposure derived from ingested climatology tiles.
Lake Koshkonong: Lightning exposure derived from ingested climatology tiles.
Tornado
Jefferson: 38/100 · Lake Koshkonong: 35/100
Jefferson is 3 points higher.
Jefferson: Tornado risk derived from NOAA SPC historical reports.
Lake Koshkonong: Tornado risk derived from NOAA SPC historical reports.
Hail
Jefferson: 70/100 · Lake Koshkonong: 44/100
Jefferson is 26 points higher.
Jefferson: Hail risk derived from NOAA SPC historical reports.
Lake Koshkonong: Hail risk derived from NOAA SPC historical reports.
Storm surge
Jefferson: Unavailable · Lake Koshkonong: Unavailable
A score difference cannot be calculated without both sources.
Jefferson: Storm surge model is not available for this location yet.
Lake Koshkonong: Storm surge model is not available for this location yet.
Wildfire
Jefferson: 46/100 · Lake Koshkonong: 11/100
Jefferson is 35 points higher.
Jefferson: Wildfire exposure derived from ingested fire potential tiles.
Lake Koshkonong: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Jefferson: 19/100 · Lake Koshkonong: 19/100
No gap.
Jefferson: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Lake Koshkonong: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.