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City vs city

Ontario vs San Diego, CA

San Diego currently scores 8 points higher overall than Ontario, with the largest gap in flood.

Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.

Ontario

32/100

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San Diego

40/100

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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

Ontario: 32/100 · San Diego: 40/100

San Diego is 8 points higher.

Flood

Ontario: 41/100 · San Diego: 100/100

San Diego is 59 points higher.

Ontario: FEMA NFHL flood zones: 14 features intersect this tile.

San Diego: FEMA NFHL flood zones: 10 features intersect this tile.

Wind

Ontario: 5/100 · San Diego: 5/100

No gap.

Ontario: Wind exposure derived from ingested design wind / climatology tiles.

San Diego: Wind exposure derived from ingested design wind / climatology tiles.

Lightning

Ontario: 1/100 · San Diego: 0/100

Ontario is 1 points higher.

Ontario: Lightning exposure derived from ingested climatology tiles.

San Diego: Lightning exposure derived from ingested climatology tiles.

Tornado

Ontario: 0/100 · San Diego: 0/100

No gap.

Ontario: Tornado risk derived from NOAA SPC historical reports.

San Diego: Tornado risk derived from NOAA SPC historical reports.

Hail

Ontario: 0/100 · San Diego: 1/100

San Diego is 1 points higher.

Ontario: Hail risk derived from NOAA SPC historical reports.

San Diego: Hail risk derived from NOAA SPC historical reports.

Storm surge

Ontario: Unavailable · San Diego: Unavailable

A score difference cannot be calculated without both sources.

Ontario: Storm surge model is not available for this location yet.

San Diego: Storm surge model is not available for this location yet.

Wildfire

Ontario: 80/100 · San Diego: 69/100

Ontario is 11 points higher.

Ontario: Wildfire exposure derived from ingested fire potential tiles.

San Diego: Wildfire exposure derived from ingested fire potential tiles.

Current air quality

Ontario: 31/100 · San Diego: 24/100

Ontario is 7 points higher.

Ontario: Air quality signal derived from the latest EPA AirNow combined AQI grid.

San Diego: Air quality signal derived from the latest EPA AirNow combined AQI grid.