City vs city
North Royalton vs Parma, OH
North Royalton and Parma are tied on overall score, with the biggest factor difference 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
North Royalton: 37/100 · Parma: 37/100
No gap.
Flood
North Royalton: 50/100 · Parma: 50/100
No gap.
North Royalton: FEMA NFHL flood zones: 3 features intersect this tile.
Parma: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
North Royalton: 18/100 · Parma: 18/100
No gap.
North Royalton: Wind exposure derived from ingested design wind / climatology tiles.
Parma: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
North Royalton: 39/100 · Parma: 39/100
No gap.
North Royalton: Lightning exposure derived from ingested climatology tiles.
Parma: Lightning exposure derived from ingested climatology tiles.
Tornado
North Royalton: 15/100 · Parma: 15/100
No gap.
North Royalton: Tornado risk derived from NOAA SPC historical reports.
Parma: Tornado risk derived from NOAA SPC historical reports.
Hail
North Royalton: 100/100 · Parma: 100/100
No gap.
North Royalton: Hail risk derived from NOAA SPC historical reports.
Parma: Hail risk derived from NOAA SPC historical reports.
Storm surge
North Royalton: Unavailable · Parma: Unavailable
A score difference cannot be calculated without both sources.
North Royalton: Storm surge model is not available for this location yet.
Parma: Storm surge model is not available for this location yet.
Wildfire
North Royalton: 3/100 · Parma: 3/100
No gap.
North Royalton: Wildfire exposure derived from ingested fire potential tiles.
Parma: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
North Royalton: 35/100 · Parma: 35/100
No gap.
North Royalton: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Parma: Air quality signal derived from the latest EPA AirNow combined AQI grid.