City vs city
Phoenix vs Sierra Vista, AZ
Phoenix currently scores 1 points higher overall than Sierra Vista, 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
Phoenix: 34/100 · Sierra Vista: 33/100
Phoenix is 1 points higher.
Flood
Phoenix: 75/100 · Sierra Vista: 35/100
Phoenix is 40 points higher.
Phoenix: FEMA NFHL flood zones: 3 features intersect this tile.
Sierra Vista: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Phoenix: 10/100 · Sierra Vista: 13/100
Sierra Vista is 3 points higher.
Phoenix: Wind exposure derived from ingested design wind / climatology tiles.
Sierra Vista: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Phoenix: 17/100 · Sierra Vista: 45/100
Sierra Vista is 28 points higher.
Phoenix: Lightning exposure derived from ingested climatology tiles.
Sierra Vista: Lightning exposure derived from ingested climatology tiles.
Tornado
Phoenix: 12/100 · Sierra Vista: 0/100
Phoenix is 12 points higher.
Phoenix: Tornado risk derived from NOAA SPC historical reports.
Sierra Vista: Tornado risk derived from NOAA SPC historical reports.
Hail
Phoenix: 18/100 · Sierra Vista: 25/100
Sierra Vista is 7 points higher.
Phoenix: Hail risk derived from NOAA SPC historical reports.
Sierra Vista: Hail risk derived from NOAA SPC historical reports.
Storm surge
Phoenix: Unavailable · Sierra Vista: Unavailable
A score difference cannot be calculated without both sources.
Phoenix: Storm surge model is not available for this location yet.
Sierra Vista: Storm surge model is not available for this location yet.
Wildfire
Phoenix: 87/100 · Sierra Vista: 63/100
Phoenix is 24 points higher.
Phoenix: Wildfire exposure derived from ingested fire potential tiles.
Sierra Vista: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Phoenix: 22/100 · Sierra Vista: 19/100
Phoenix is 3 points higher.
Phoenix: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sierra Vista: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.