City vs city
San Francisco vs Santa Ana, CA
San Francisco currently scores 1 points higher overall than Santa Ana, with the largest gap in wildfire.
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
San Francisco: 25/100 · Santa Ana: 24/100
San Francisco is 1 points higher.
Flood
San Francisco: 26/100 · Santa Ana: 36/100
Santa Ana is 10 points higher.
San Francisco: FEMA NFHL flood zones: 4 features intersect this tile.
Santa Ana: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
San Francisco: 2/100 · Santa Ana: 5/100
Santa Ana is 3 points higher.
San Francisco: Wind exposure derived from ingested design wind / climatology tiles.
Santa Ana: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
San Francisco: 0/100 · Santa Ana: 1/100
Santa Ana is 1 points higher.
San Francisco: Lightning exposure derived from ingested climatology tiles.
Santa Ana: Lightning exposure derived from ingested climatology tiles.
Tornado
San Francisco: 0/100 · Santa Ana: 12/100
Santa Ana is 12 points higher.
San Francisco: Tornado risk derived from NOAA SPC historical reports.
Santa Ana: Tornado risk derived from NOAA SPC historical reports.
Hail
San Francisco: 18/100 · Santa Ana: 13/100
San Francisco is 5 points higher.
San Francisco: Hail risk derived from NOAA SPC historical reports.
Santa Ana: Hail risk derived from NOAA SPC historical reports.
Storm surge
San Francisco: Unavailable · Santa Ana: Unavailable
A score difference cannot be calculated without both sources.
San Francisco: Storm surge model is not available for this location yet.
Santa Ana: Storm surge model is not available for this location yet.
Wildfire
San Francisco: 52/100 · Santa Ana: 71/100
Santa Ana is 19 points higher.
San Francisco: Wildfire exposure derived from ingested fire potential tiles.
Santa Ana: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
San Francisco: 25/100 · Santa Ana: 30/100
Santa Ana is 5 points higher.
San Francisco: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Santa Ana: Air quality signal derived from the latest EPA AirNow combined AQI grid.