City vs city
Ironton vs Portsmouth, OH
Ironton currently scores 2 points higher overall than Portsmouth, 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
Ironton: 48/100 · Portsmouth: 46/100
Ironton is 2 points higher.
Flood
Ironton: 62/100 · Portsmouth: 41/100
Ironton is 21 points higher.
Ironton: FEMA NFHL flood zones: 8 features intersect this tile.
Portsmouth: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Ironton: 15/100 · Portsmouth: 15/100
No gap.
Ironton: Wind exposure derived from ingested design wind / climatology tiles.
Portsmouth: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ironton: 40/100 · Portsmouth: 34/100
Ironton is 6 points higher.
Ironton: Lightning exposure derived from ingested climatology tiles.
Portsmouth: Lightning exposure derived from ingested climatology tiles.
Tornado
Ironton: 19/100 · Portsmouth: 35/100
Portsmouth is 16 points higher.
Ironton: Tornado risk derived from NOAA SPC historical reports.
Portsmouth: Tornado risk derived from NOAA SPC historical reports.
Hail
Ironton: 100/100 · Portsmouth: 100/100
No gap.
Ironton: Hail risk derived from NOAA SPC historical reports.
Portsmouth: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ironton: Unavailable · Portsmouth: Unavailable
A score difference cannot be calculated without both sources.
Ironton: Storm surge model is not available for this location yet.
Portsmouth: Storm surge model is not available for this location yet.
Wildfire
Ironton: 59/100 · Portsmouth: 58/100
Ironton is 1 points higher.
Ironton: Wildfire exposure derived from ingested fire potential tiles.
Portsmouth: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Ironton: 38/100 · Portsmouth: 41/100
Portsmouth is 3 points higher.
Ironton: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Portsmouth: Air quality signal derived from the latest EPA AirNow combined AQI grid.