City vs city
Greenville vs Rockwall, TX
Rockwall currently scores 4 points higher overall than Greenville, 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 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
Greenville: 46/100 · Rockwall: 50/100
Rockwall is 4 points higher.
Flood
Greenville: 36/100 · Rockwall: 46/100
Rockwall is 10 points higher.
Greenville: FEMA NFHL flood zones: 6 features intersect this tile.
Rockwall: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Greenville: 14/100 · Rockwall: 14/100
No gap.
Greenville: Wind exposure derived from ingested design wind / climatology tiles.
Rockwall: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Greenville: 71/100 · Rockwall: 64/100
Greenville is 7 points higher.
Greenville: Lightning exposure derived from ingested climatology tiles.
Rockwall: Lightning exposure derived from ingested climatology tiles.
Tornado
Greenville: 19/100 · Rockwall: 46/100
Rockwall is 27 points higher.
Greenville: Tornado risk derived from NOAA SPC historical reports.
Rockwall: Tornado risk derived from NOAA SPC historical reports.
Hail
Greenville: 100/100 · Rockwall: 100/100
No gap.
Greenville: Hail risk derived from NOAA SPC historical reports.
Rockwall: Hail risk derived from NOAA SPC historical reports.
Storm surge
Greenville: Unavailable · Rockwall: Unavailable
A score difference cannot be calculated without both sources.
Greenville: Storm surge model is not available for this location yet.
Rockwall: Storm surge model is not available for this location yet.
Wildfire
Greenville: 58/100 · Rockwall: 55/100
Greenville is 3 points higher.
Greenville: Wildfire exposure derived from ingested fire potential tiles.
Rockwall: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Greenville: 27/100 · Rockwall: 28/100
Rockwall is 1 points higher.
Greenville: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rockwall: Air quality signal derived from the latest EPA AirNow combined AQI grid.