City vs city
Antioch vs Concord, CA
Concord currently scores 2 points higher overall than Antioch, 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
Antioch: 22/100 · Concord: 24/100
Concord is 2 points higher.
Flood
Antioch: 28/100 · Concord: 33/100
Concord is 5 points higher.
Antioch: FEMA NFHL flood zones: 12 features intersect this tile.
Concord: FEMA NFHL flood zones: 28 features intersect this tile.
Wind
Antioch: 3/100 · Concord: 2/100
Antioch is 1 points higher.
Antioch: Wind exposure derived from ingested design wind / climatology tiles.
Concord: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Antioch: 0/100 · Concord: 0/100
No gap.
Antioch: Lightning exposure derived from ingested climatology tiles.
Concord: Lightning exposure derived from ingested climatology tiles.
Tornado
Antioch: 8/100 · Concord: 8/100
No gap.
Antioch: Tornado risk derived from NOAA SPC historical reports.
Concord: Tornado risk derived from NOAA SPC historical reports.
Hail
Antioch: 1/100 · Concord: 10/100
Concord is 9 points higher.
Antioch: Hail risk derived from NOAA SPC historical reports.
Concord: Hail risk derived from NOAA SPC historical reports.
Storm surge
Antioch: Unavailable · Concord: Unavailable
A score difference cannot be calculated without both sources.
Antioch: Storm surge model is not available for this location yet.
Concord: Storm surge model is not available for this location yet.
Wildfire
Antioch: 67/100 · Concord: 69/100
Concord is 2 points higher.
Antioch: Wildfire exposure derived from ingested fire potential tiles.
Concord: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Antioch: 25/100 · Concord: 24/100
Antioch is 1 points higher.
Antioch: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Concord: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.