City vs city
Hercules vs Walnut Creek, CA
Hercules currently scores 3 points higher overall than Walnut Creek, 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 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
Hercules: 27/100 · Walnut Creek: 24/100
Hercules is 3 points higher.
Flood
Hercules: 40/100 · Walnut Creek: 33/100
Hercules is 7 points higher.
Hercules: FEMA NFHL flood zones: 15 features intersect this tile.
Walnut Creek: FEMA NFHL flood zones: 28 features intersect this tile.
Wind
Hercules: 2/100 · Walnut Creek: 2/100
No gap.
Hercules: Wind exposure derived from ingested design wind / climatology tiles.
Walnut Creek: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hercules: 0/100 · Walnut Creek: 0/100
No gap.
Hercules: Lightning exposure derived from ingested climatology tiles.
Walnut Creek: Lightning exposure derived from ingested climatology tiles.
Tornado
Hercules: 0/100 · Walnut Creek: 8/100
Walnut Creek is 8 points higher.
Hercules: Tornado risk derived from NOAA SPC historical reports.
Walnut Creek: Tornado risk derived from NOAA SPC historical reports.
Hail
Hercules: 1/100 · Walnut Creek: 10/100
Walnut Creek is 9 points higher.
Hercules: Hail risk derived from NOAA SPC historical reports.
Walnut Creek: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hercules: Unavailable · Walnut Creek: Unavailable
A score difference cannot be calculated without both sources.
Hercules: Storm surge model is not available for this location yet.
Walnut Creek: Storm surge model is not available for this location yet.
Wildfire
Hercules: 67/100 · Walnut Creek: 69/100
Walnut Creek is 2 points higher.
Hercules: Wildfire exposure derived from ingested fire potential tiles.
Walnut Creek: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hercules: 26/100 · Walnut Creek: 24/100
Hercules is 2 points higher.
Hercules: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Walnut Creek: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.