City vs city
Concord vs Walnut Creek, CA
Concord 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 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
Concord: 24/100 · Walnut Creek: 24/100
No gap.
Flood
Concord: 33/100 · Walnut Creek: 33/100
No gap.
Concord: FEMA NFHL flood zones: 28 features intersect this tile.
Walnut Creek: FEMA NFHL flood zones: 28 features intersect this tile.
Wind
Concord: 2/100 · Walnut Creek: 2/100
No gap.
Concord: Wind exposure derived from ingested design wind / climatology tiles.
Walnut Creek: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Concord: 0/100 · Walnut Creek: 0/100
No gap.
Concord: Lightning exposure derived from ingested climatology tiles.
Walnut Creek: Lightning exposure derived from ingested climatology tiles.
Tornado
Concord: 8/100 · Walnut Creek: 8/100
No gap.
Concord: Tornado risk derived from NOAA SPC historical reports.
Walnut Creek: Tornado risk derived from NOAA SPC historical reports.
Hail
Concord: 10/100 · Walnut Creek: 10/100
No gap.
Concord: Hail risk derived from NOAA SPC historical reports.
Walnut Creek: Hail risk derived from NOAA SPC historical reports.
Storm surge
Concord: Unavailable · Walnut Creek: Unavailable
A score difference cannot be calculated without both sources.
Concord: Storm surge model is not available for this location yet.
Walnut Creek: Storm surge model is not available for this location yet.
Wildfire
Concord: 69/100 · Walnut Creek: 69/100
No gap.
Concord: Wildfire exposure derived from ingested fire potential tiles.
Walnut Creek: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Concord: 24/100 · Walnut Creek: 24/100
No gap.
Concord: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Walnut Creek: Air quality signal derived from the latest EPA AirNow combined AQI grid.