City vs city
Pomona vs San Dimas, CA
Pomona currently scores 3 points higher overall than San Dimas, 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 uses an ingested EPA AirNow snapshot and may not reflect current conditions; 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
Pomona: 23/100 · San Dimas: 20/100
Pomona is 3 points higher.
Flood
Pomona: 26/100 · San Dimas: 29/100
San Dimas is 3 points higher.
Pomona: FEMA NFHL flood zones: 6 features intersect this tile.
San Dimas: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Pomona: 5/100 · San Dimas: 5/100
No gap.
Pomona: Wind exposure derived from ingested design wind / climatology tiles.
San Dimas: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Pomona: 1/100 · San Dimas: 1/100
No gap.
Pomona: Lightning exposure derived from ingested climatology tiles.
San Dimas: Lightning exposure derived from ingested climatology tiles.
Tornado
Pomona: 0/100 · San Dimas: 8/100
San Dimas is 8 points higher.
Pomona: Tornado risk derived from NOAA SPC historical reports.
San Dimas: Tornado risk derived from NOAA SPC historical reports.
Hail
Pomona: 2/100 · San Dimas: 2/100
No gap.
Pomona: Hail risk derived from NOAA SPC historical reports.
San Dimas: Hail risk derived from NOAA SPC historical reports.
Storm surge
Pomona: Unavailable · San Dimas: Unavailable
A score difference cannot be calculated without both sources.
Pomona: Storm surge model is not available for this location yet.
San Dimas: Storm surge model is not available for this location yet.
Wildfire
Pomona: 78/100 · San Dimas: 78/100
No gap.
Pomona: Wildfire exposure derived from ingested fire potential tiles.
San Dimas: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Pomona: 26/100 · San Dimas: 20/100
Pomona is 6 points higher.
Pomona: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
San Dimas: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.