City vs city
Simi Valley vs Stevenson Ranch, CA
Simi Valley currently scores 6 points higher overall than Stevenson Ranch, with the largest gap in current air quality.
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
Simi Valley: 26/100 · Stevenson Ranch: 20/100
Simi Valley is 6 points higher.
Flood
Simi Valley: 29/100 · Stevenson Ranch: 31/100
Stevenson Ranch is 2 points higher.
Simi Valley: FEMA NFHL flood zones: 12 features intersect this tile.
Stevenson Ranch: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Simi Valley: 4/100 · Stevenson Ranch: 4/100
No gap.
Simi Valley: Wind exposure derived from ingested design wind / climatology tiles.
Stevenson Ranch: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Simi Valley: 0/100 · Stevenson Ranch: 1/100
Stevenson Ranch is 1 points higher.
Simi Valley: Lightning exposure derived from ingested climatology tiles.
Stevenson Ranch: Lightning exposure derived from ingested climatology tiles.
Tornado
Simi Valley: 0/100 · Stevenson Ranch: 4/100
Stevenson Ranch is 4 points higher.
Simi Valley: Tornado risk derived from NOAA SPC historical reports.
Stevenson Ranch: Tornado risk derived from NOAA SPC historical reports.
Hail
Simi Valley: 6/100 · Stevenson Ranch: 3/100
Simi Valley is 3 points higher.
Simi Valley: Hail risk derived from NOAA SPC historical reports.
Stevenson Ranch: Hail risk derived from NOAA SPC historical reports.
Storm surge
Simi Valley: Unavailable · Stevenson Ranch: Unavailable
A score difference cannot be calculated without both sources.
Simi Valley: Storm surge model is not available for this location yet.
Stevenson Ranch: Storm surge model is not available for this location yet.
Wildfire
Simi Valley: 72/100 · Stevenson Ranch: 73/100
Stevenson Ranch is 1 points higher.
Simi Valley: Wildfire exposure derived from ingested fire potential tiles.
Stevenson Ranch: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Simi Valley: 17/100 · Stevenson Ranch: 24/100
Stevenson Ranch is 7 points higher.
Simi Valley: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Stevenson Ranch: Air quality signal derived from the latest EPA AirNow combined AQI grid.