City vs city
Harleysville vs Pottstown, PA
Pottstown currently scores 3 points higher overall than Harleysville, 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
Harleysville: 38/100 · Pottstown: 41/100
Pottstown is 3 points higher.
Flood
Harleysville: 66/100 · Pottstown: 64/100
Harleysville is 2 points higher.
Harleysville: FEMA NFHL flood zones: 4 features intersect this tile.
Pottstown: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Harleysville: 22/100 · Pottstown: 22/100
No gap.
Harleysville: Wind exposure derived from ingested design wind / climatology tiles.
Pottstown: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harleysville: 36/100 · Pottstown: 41/100
Pottstown is 5 points higher.
Harleysville: Lightning exposure derived from ingested climatology tiles.
Pottstown: Lightning exposure derived from ingested climatology tiles.
Tornado
Harleysville: 8/100 · Pottstown: 19/100
Pottstown is 11 points higher.
Harleysville: Tornado risk derived from NOAA SPC historical reports.
Pottstown: Tornado risk derived from NOAA SPC historical reports.
Hail
Harleysville: 44/100 · Pottstown: 52/100
Pottstown is 8 points higher.
Harleysville: Hail risk derived from NOAA SPC historical reports.
Pottstown: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harleysville: Unavailable · Pottstown: Unavailable
A score difference cannot be calculated without both sources.
Harleysville: Storm surge model is not available for this location yet.
Pottstown: Storm surge model is not available for this location yet.
Wildfire
Harleysville: 48/100 · Pottstown: 52/100
Pottstown is 4 points higher.
Harleysville: Wildfire exposure derived from ingested fire potential tiles.
Pottstown: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Harleysville: 39/100 · Pottstown: 39/100
No gap.
Harleysville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Pottstown: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.