City vs city
Old Hill vs South Wilton, CT
Old Hill currently scores 18 points higher overall than South Wilton, 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
Old Hill: 44/100 · South Wilton: 26/100
Old Hill is 18 points higher.
Flood
Old Hill: 69/100 · South Wilton: 0/100
Old Hill is 69 points higher.
Old Hill: FEMA NFHL flood zones: 13 features intersect this tile.
South Wilton: FEMA NFHL flood zones: 0 features intersect this tile.
Wind
Old Hill: 26/100 · South Wilton: 25/100
Old Hill is 1 points higher.
Old Hill: Wind exposure derived from ingested design wind / climatology tiles.
South Wilton: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Old Hill: 16/100 · South Wilton: 17/100
South Wilton is 1 points higher.
Old Hill: Lightning exposure derived from ingested climatology tiles.
South Wilton: Lightning exposure derived from ingested climatology tiles.
Tornado
Old Hill: 0/100 · South Wilton: 15/100
South Wilton is 15 points higher.
Old Hill: Tornado risk derived from NOAA SPC historical reports.
South Wilton: Tornado risk derived from NOAA SPC historical reports.
Hail
Old Hill: 10/100 · South Wilton: 30/100
South Wilton is 20 points higher.
Old Hill: Hail risk derived from NOAA SPC historical reports.
South Wilton: Hail risk derived from NOAA SPC historical reports.
Storm surge
Old Hill: 76/100 · South Wilton: Unavailable
A score difference cannot be calculated without both sources.
Old Hill: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
South Wilton: Storm surge model is not available for this location yet.
Wildfire
Old Hill: 57/100 · South Wilton: 46/100
Old Hill is 11 points higher.
Old Hill: Wildfire exposure derived from ingested fire potential tiles.
South Wilton: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Old Hill: 51/100 · South Wilton: 51/100
No gap.
Old Hill: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Wilton: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.