City vs city
Ontario vs San Antonio Heights, CA
Ontario currently scores 2 points higher overall than San Antonio Heights, 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 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
Ontario: 32/100 · San Antonio Heights: 30/100
Ontario is 2 points higher.
Flood
Ontario: 41/100 · San Antonio Heights: 28/100
Ontario is 13 points higher.
Ontario: FEMA NFHL flood zones: 14 features intersect this tile.
San Antonio Heights: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Ontario: 5/100 · San Antonio Heights: 5/100
No gap.
Ontario: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio Heights: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ontario: 1/100 · San Antonio Heights: 1/100
No gap.
Ontario: Lightning exposure derived from ingested climatology tiles.
San Antonio Heights: Lightning exposure derived from ingested climatology tiles.
Tornado
Ontario: 0/100 · San Antonio Heights: 0/100
No gap.
Ontario: Tornado risk derived from NOAA SPC historical reports.
San Antonio Heights: Tornado risk derived from NOAA SPC historical reports.
Hail
Ontario: 0/100 · San Antonio Heights: 0/100
No gap.
Ontario: Hail risk derived from NOAA SPC historical reports.
San Antonio Heights: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ontario: Unavailable · San Antonio Heights: Unavailable
A score difference cannot be calculated without both sources.
Ontario: Storm surge model is not available for this location yet.
San Antonio Heights: Storm surge model is not available for this location yet.
Wildfire
Ontario: 80/100 · San Antonio Heights: 83/100
San Antonio Heights is 3 points higher.
Ontario: Wildfire exposure derived from ingested fire potential tiles.
San Antonio Heights: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ontario: 31/100 · San Antonio Heights: 31/100
No gap.
Ontario: 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 Antonio Heights: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.