City vs city
Fremont vs Sunnyvale, CA
Sunnyvale currently scores 6 points higher overall than Fremont, 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
Fremont: 23/100 · Sunnyvale: 29/100
Sunnyvale is 6 points higher.
Flood
Fremont: 31/100 · Sunnyvale: 52/100
Sunnyvale is 21 points higher.
Fremont: FEMA NFHL flood zones: 13 features intersect this tile.
Sunnyvale: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Fremont: 2/100 · Sunnyvale: 2/100
No gap.
Fremont: Wind exposure derived from ingested design wind / climatology tiles.
Sunnyvale: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fremont: 0/100 · Sunnyvale: 0/100
No gap.
Fremont: Lightning exposure derived from ingested climatology tiles.
Sunnyvale: Lightning exposure derived from ingested climatology tiles.
Tornado
Fremont: 0/100 · Sunnyvale: 19/100
Sunnyvale is 19 points higher.
Fremont: Tornado risk derived from NOAA SPC historical reports.
Sunnyvale: Tornado risk derived from NOAA SPC historical reports.
Hail
Fremont: 4/100 · Sunnyvale: 11/100
Sunnyvale is 7 points higher.
Fremont: Hail risk derived from NOAA SPC historical reports.
Sunnyvale: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fremont: Unavailable · Sunnyvale: Unavailable
A score difference cannot be calculated without both sources.
Fremont: Storm surge model is not available for this location yet.
Sunnyvale: Storm surge model is not available for this location yet.
Wildfire
Fremont: 54/100 · Sunnyvale: 63/100
Sunnyvale is 9 points higher.
Fremont: Wildfire exposure derived from ingested fire potential tiles.
Sunnyvale: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Fremont: 24/100 · Sunnyvale: 26/100
Sunnyvale is 2 points higher.
Fremont: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Sunnyvale: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.