City vs city
Petaluma vs Santa Rosa, CA
Petaluma currently scores 6 points higher overall than Santa Rosa, with the largest gap in hail.
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
Petaluma: 28/100 · Santa Rosa: 22/100
Petaluma is 6 points higher.
Flood
Petaluma: 35/100 · Santa Rosa: 26/100
Petaluma is 9 points higher.
Petaluma: FEMA NFHL flood zones: 10 features intersect this tile.
Santa Rosa: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Petaluma: 2/100 · Santa Rosa: 2/100
No gap.
Petaluma: Wind exposure derived from ingested design wind / climatology tiles.
Santa Rosa: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Petaluma: 0/100 · Santa Rosa: 0/100
No gap.
Petaluma: Lightning exposure derived from ingested climatology tiles.
Santa Rosa: Lightning exposure derived from ingested climatology tiles.
Tornado
Petaluma: 0/100 · Santa Rosa: 8/100
Santa Rosa is 8 points higher.
Petaluma: Tornado risk derived from NOAA SPC historical reports.
Santa Rosa: Tornado risk derived from NOAA SPC historical reports.
Hail
Petaluma: 12/100 · Santa Rosa: 2/100
Petaluma is 10 points higher.
Petaluma: Hail risk derived from NOAA SPC historical reports.
Santa Rosa: Hail risk derived from NOAA SPC historical reports.
Storm surge
Petaluma: Unavailable · Santa Rosa: Unavailable
A score difference cannot be calculated without both sources.
Petaluma: Storm surge model is not available for this location yet.
Santa Rosa: Storm surge model is not available for this location yet.
Wildfire
Petaluma: 69/100 · Santa Rosa: 72/100
Santa Rosa is 3 points higher.
Petaluma: Wildfire exposure derived from ingested fire potential tiles.
Santa Rosa: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Petaluma: 24/100 · Santa Rosa: 22/100
Petaluma is 2 points higher.
Petaluma: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Santa Rosa: Air quality signal derived from the latest EPA AirNow combined AQI grid.