City vs city
Brentwood vs Rio Vista, CA
Rio Vista currently scores 6 points higher overall than Brentwood, with the largest gap in wildfire.
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
Brentwood: 22/100 · Rio Vista: 28/100
Rio Vista is 6 points higher.
Flood
Brentwood: 28/100 · Rio Vista: 28/100
No gap.
Brentwood: FEMA NFHL flood zones: 12 features intersect this tile.
Rio Vista: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Brentwood: 3/100 · Rio Vista: 3/100
No gap.
Brentwood: Wind exposure derived from ingested design wind / climatology tiles.
Rio Vista: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Brentwood: 0/100 · Rio Vista: 0/100
No gap.
Brentwood: Lightning exposure derived from ingested climatology tiles.
Rio Vista: Lightning exposure derived from ingested climatology tiles.
Tornado
Brentwood: 8/100 · Rio Vista: 0/100
Brentwood is 8 points higher.
Brentwood: Tornado risk derived from NOAA SPC historical reports.
Rio Vista: Tornado risk derived from NOAA SPC historical reports.
Hail
Brentwood: 1/100 · Rio Vista: 0/100
Brentwood is 1 points higher.
Brentwood: Hail risk derived from NOAA SPC historical reports.
Rio Vista: Hail risk derived from NOAA SPC historical reports.
Storm surge
Brentwood: Unavailable · Rio Vista: Unavailable
A score difference cannot be calculated without both sources.
Brentwood: Storm surge model is not available for this location yet.
Rio Vista: Storm surge model is not available for this location yet.
Wildfire
Brentwood: 67/100 · Rio Vista: 57/100
Brentwood is 10 points higher.
Brentwood: Wildfire exposure derived from ingested fire potential tiles.
Rio Vista: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Brentwood: 25/100 · Rio Vista: 25/100
No gap.
Brentwood: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rio 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.