City vs city
Johnstown vs St. Clairsville, PA
Johnstown currently scores 3 points higher overall than St. Clairsville, 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 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
Johnstown: 37/100 · St. Clairsville: 34/100
Johnstown is 3 points higher.
Flood
Johnstown: 68/100 · St. Clairsville: 95/100
St. Clairsville is 27 points higher.
Johnstown: FEMA NFHL flood zones: 7 features intersect this tile.
St. Clairsville: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Johnstown: 18/100 · St. Clairsville: 18/100
No gap.
Johnstown: Wind exposure derived from ingested design wind / climatology tiles.
St. Clairsville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Johnstown: 30/100 · St. Clairsville: 27/100
Johnstown is 3 points higher.
Johnstown: Lightning exposure derived from ingested climatology tiles.
St. Clairsville: Lightning exposure derived from ingested climatology tiles.
Tornado
Johnstown: 35/100 · St. Clairsville: 12/100
Johnstown is 23 points higher.
Johnstown: Tornado risk derived from NOAA SPC historical reports.
St. Clairsville: Tornado risk derived from NOAA SPC historical reports.
Hail
Johnstown: 25/100 · St. Clairsville: 7/100
Johnstown is 18 points higher.
Johnstown: Hail risk derived from NOAA SPC historical reports.
St. Clairsville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Johnstown: Unavailable · St. Clairsville: Unavailable
A score difference cannot be calculated without both sources.
Johnstown: Storm surge model is not available for this location yet.
St. Clairsville: Storm surge model is not available for this location yet.
Wildfire
Johnstown: 44/100 · St. Clairsville: 40/100
Johnstown is 4 points higher.
Johnstown: Wildfire exposure derived from ingested fire potential tiles.
St. Clairsville: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Johnstown: 37/100 · St. Clairsville: 38/100
St. Clairsville is 1 points higher.
Johnstown: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Clairsville: Air quality signal derived from the latest EPA AirNow combined AQI grid.