City vs city
Harrisburg vs South Williamsport, PA
South Williamsport currently scores 3 points higher overall than Harrisburg, with the largest gap in current air quality.
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
Harrisburg: 50/100 · South Williamsport: 53/100
South Williamsport is 3 points higher.
Flood
Harrisburg: 98/100 · South Williamsport: 91/100
Harrisburg is 7 points higher.
Harrisburg: FEMA NFHL flood zones: 11 features intersect this tile.
South Williamsport: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Harrisburg: 20/100 · South Williamsport: 19/100
Harrisburg is 1 points higher.
Harrisburg: Wind exposure derived from ingested design wind / climatology tiles.
South Williamsport: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Harrisburg: 38/100 · South Williamsport: 23/100
Harrisburg is 15 points higher.
Harrisburg: Lightning exposure derived from ingested climatology tiles.
South Williamsport: Lightning exposure derived from ingested climatology tiles.
Tornado
Harrisburg: 38/100 · South Williamsport: 35/100
Harrisburg is 3 points higher.
Harrisburg: Tornado risk derived from NOAA SPC historical reports.
South Williamsport: Tornado risk derived from NOAA SPC historical reports.
Hail
Harrisburg: 72/100 · South Williamsport: 88/100
South Williamsport is 16 points higher.
Harrisburg: Hail risk derived from NOAA SPC historical reports.
South Williamsport: Hail risk derived from NOAA SPC historical reports.
Storm surge
Harrisburg: Unavailable · South Williamsport: Unavailable
A score difference cannot be calculated without both sources.
Harrisburg: Storm surge model is not available for this location yet.
South Williamsport: Storm surge model is not available for this location yet.
Wildfire
Harrisburg: 43/100 · South Williamsport: 43/100
No gap.
Harrisburg: Wildfire exposure derived from ingested fire potential tiles.
South Williamsport: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Harrisburg: 40/100 · South Williamsport: 70/100
South Williamsport is 30 points higher.
Harrisburg: Air quality signal derived from the latest EPA AirNow combined AQI grid.
South Williamsport: Air quality signal derived from the latest EPA AirNow combined AQI grid.