City vs city
San Diego vs Walnut, CA
San Diego currently scores 1 points higher overall than Walnut, 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
San Diego: 22/100 · Walnut: 21/100
San Diego is 1 points higher.
Flood
San Diego: 39/100 · Walnut: 30/100
San Diego is 9 points higher.
San Diego: FEMA NFHL flood zones: 14 features intersect this tile.
Walnut: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
San Diego: 6/100 · Walnut: 5/100
San Diego is 1 points higher.
San Diego: Wind exposure derived from ingested design wind / climatology tiles.
Walnut: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
San Diego: 1/100 · Walnut: 1/100
No gap.
San Diego: Lightning exposure derived from ingested climatology tiles.
Walnut: Lightning exposure derived from ingested climatology tiles.
Tornado
San Diego: 12/100 · Walnut: 8/100
San Diego is 4 points higher.
San Diego: Tornado risk derived from NOAA SPC historical reports.
Walnut: Tornado risk derived from NOAA SPC historical reports.
Hail
San Diego: 5/100 · Walnut: 6/100
Walnut is 1 points higher.
San Diego: Hail risk derived from NOAA SPC historical reports.
Walnut: Hail risk derived from NOAA SPC historical reports.
Storm surge
San Diego: Unavailable · Walnut: Unavailable
A score difference cannot be calculated without both sources.
San Diego: Storm surge model is not available for this location yet.
Walnut: Storm surge model is not available for this location yet.
Wildfire
San Diego: 69/100 · Walnut: 76/100
Walnut is 7 points higher.
San Diego: Wildfire exposure derived from ingested fire potential tiles.
Walnut: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
San Diego: 24/100 · Walnut: 21/100
San Diego is 3 points higher.
San Diego: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Walnut: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.