City vs city
Contra Costa Centre vs Walnut Creek, CA
Contra Costa Centre and Walnut Creek are tied on overall score, with the biggest factor difference 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
Contra Costa Centre: 24/100 · Walnut Creek: 24/100
No gap.
Flood
Contra Costa Centre: 33/100 · Walnut Creek: 33/100
No gap.
Contra Costa Centre: FEMA NFHL flood zones: 28 features intersect this tile.
Walnut Creek: FEMA NFHL flood zones: 28 features intersect this tile.
Wind
Contra Costa Centre: 2/100 · Walnut Creek: 2/100
No gap.
Contra Costa Centre: Wind exposure derived from ingested design wind / climatology tiles.
Walnut Creek: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Contra Costa Centre: 0/100 · Walnut Creek: 0/100
No gap.
Contra Costa Centre: Lightning exposure derived from ingested climatology tiles.
Walnut Creek: Lightning exposure derived from ingested climatology tiles.
Tornado
Contra Costa Centre: 8/100 · Walnut Creek: 8/100
No gap.
Contra Costa Centre: Tornado risk derived from NOAA SPC historical reports.
Walnut Creek: Tornado risk derived from NOAA SPC historical reports.
Hail
Contra Costa Centre: 10/100 · Walnut Creek: 10/100
No gap.
Contra Costa Centre: Hail risk derived from NOAA SPC historical reports.
Walnut Creek: Hail risk derived from NOAA SPC historical reports.
Storm surge
Contra Costa Centre: Unavailable · Walnut Creek: Unavailable
A score difference cannot be calculated without both sources.
Contra Costa Centre: Storm surge model is not available for this location yet.
Walnut Creek: Storm surge model is not available for this location yet.
Wildfire
Contra Costa Centre: 69/100 · Walnut Creek: 69/100
No gap.
Contra Costa Centre: Wildfire exposure derived from ingested fire potential tiles.
Walnut Creek: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Contra Costa Centre: 24/100 · Walnut Creek: 24/100
No gap.
Contra Costa Centre: 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.