City vs city
Royersford vs Sanatoga, PA
Royersford currently scores 3 points higher overall than Sanatoga, with the largest gap in hail.
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
Royersford: 40/100 · Sanatoga: 37/100
Royersford is 3 points higher.
Flood
Royersford: 85/100 · Sanatoga: 76/100
Royersford is 9 points higher.
Royersford: FEMA NFHL flood zones: 11 features intersect this tile.
Sanatoga: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Royersford: 22/100 · Sanatoga: 22/100
No gap.
Royersford: Wind exposure derived from ingested design wind / climatology tiles.
Sanatoga: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Royersford: 41/100 · Sanatoga: 39/100
Royersford is 2 points higher.
Royersford: Lightning exposure derived from ingested climatology tiles.
Sanatoga: Lightning exposure derived from ingested climatology tiles.
Tornado
Royersford: 12/100 · Sanatoga: 27/100
Sanatoga is 15 points higher.
Royersford: Tornado risk derived from NOAA SPC historical reports.
Sanatoga: Tornado risk derived from NOAA SPC historical reports.
Hail
Royersford: 41/100 · Sanatoga: 17/100
Royersford is 24 points higher.
Royersford: Hail risk derived from NOAA SPC historical reports.
Sanatoga: Hail risk derived from NOAA SPC historical reports.
Storm surge
Royersford: Unavailable · Sanatoga: Unavailable
A score difference cannot be calculated without both sources.
Royersford: Storm surge model is not available for this location yet.
Sanatoga: Storm surge model is not available for this location yet.
Wildfire
Royersford: 39/100 · Sanatoga: 42/100
Sanatoga is 3 points higher.
Royersford: Wildfire exposure derived from ingested fire potential tiles.
Sanatoga: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Royersford: 40/100 · Sanatoga: 39/100
Royersford is 1 points higher.
Royersford: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sanatoga: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.