City vs city
Mill Valley vs Richmond, CA
Mill Valley currently scores 1 points higher overall than Richmond, 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
Mill Valley: 25/100 · Richmond: 24/100
Mill Valley is 1 points higher.
Flood
Mill Valley: 40/100 · Richmond: 50/100
Richmond is 10 points higher.
Mill Valley: FEMA NFHL flood zones: 13 features intersect this tile.
Richmond: FEMA NFHL flood zones: 18 features intersect this tile.
Wind
Mill Valley: 2/100 · Richmond: 2/100
No gap.
Mill Valley: Wind exposure derived from ingested design wind / climatology tiles.
Richmond: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mill Valley: 0/100 · Richmond: 0/100
No gap.
Mill Valley: Lightning exposure derived from ingested climatology tiles.
Richmond: Lightning exposure derived from ingested climatology tiles.
Tornado
Mill Valley: 0/100 · Richmond: 4/100
Richmond is 4 points higher.
Mill Valley: Tornado risk derived from NOAA SPC historical reports.
Richmond: Tornado risk derived from NOAA SPC historical reports.
Hail
Mill Valley: 5/100 · Richmond: 2/100
Mill Valley is 3 points higher.
Mill Valley: Hail risk derived from NOAA SPC historical reports.
Richmond: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mill Valley: Unavailable · Richmond: Unavailable
A score difference cannot be calculated without both sources.
Mill Valley: Storm surge model is not available for this location yet.
Richmond: Storm surge model is not available for this location yet.
Wildfire
Mill Valley: 51/100 · Richmond: 58/100
Richmond is 7 points higher.
Mill Valley: Wildfire exposure derived from ingested fire potential tiles.
Richmond: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mill Valley: 26/100 · Richmond: 26/100
No gap.
Mill Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Richmond: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.