City vs city
Downey vs Norwalk, CA
Downey currently scores 2 points higher overall than Norwalk, 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
Downey: 24/100 · Norwalk: 22/100
Downey is 2 points higher.
Flood
Downey: 27/100 · Norwalk: 28/100
Norwalk is 1 points higher.
Downey: FEMA NFHL flood zones: 5 features intersect this tile.
Norwalk: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Downey: 4/100 · Norwalk: 4/100
No gap.
Downey: Wind exposure derived from ingested design wind / climatology tiles.
Norwalk: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Downey: 0/100 · Norwalk: 1/100
Norwalk is 1 points higher.
Downey: Lightning exposure derived from ingested climatology tiles.
Norwalk: Lightning exposure derived from ingested climatology tiles.
Tornado
Downey: 8/100 · Norwalk: 15/100
Norwalk is 7 points higher.
Downey: Tornado risk derived from NOAA SPC historical reports.
Norwalk: Tornado risk derived from NOAA SPC historical reports.
Hail
Downey: 3/100 · Norwalk: 3/100
No gap.
Downey: Hail risk derived from NOAA SPC historical reports.
Norwalk: Hail risk derived from NOAA SPC historical reports.
Storm surge
Downey: Unavailable · Norwalk: Unavailable
A score difference cannot be calculated without both sources.
Downey: Storm surge model is not available for this location yet.
Norwalk: Storm surge model is not available for this location yet.
Wildfire
Downey: 74/100 · Norwalk: 75/100
Norwalk is 1 points higher.
Downey: Wildfire exposure derived from ingested fire potential tiles.
Norwalk: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Downey: 28/100 · Norwalk: 28/100
No gap.
Downey: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Norwalk: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.