City vs city
County Center vs Potomac Mills, VA
Potomac Mills currently scores 12 points higher overall than County Center, 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
County Center: 32/100 · Potomac Mills: 44/100
Potomac Mills is 12 points higher.
Flood
County Center: 24/100 · Potomac Mills: 42/100
Potomac Mills is 18 points higher.
County Center: FEMA NFHL flood zones: 4 features intersect this tile.
Potomac Mills: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
County Center: 20/100 · Potomac Mills: 21/100
Potomac Mills is 1 points higher.
County Center: Wind exposure derived from ingested design wind / climatology tiles.
Potomac Mills: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
County Center: 42/100 · Potomac Mills: 41/100
County Center is 1 points higher.
County Center: Lightning exposure derived from ingested climatology tiles.
Potomac Mills: Lightning exposure derived from ingested climatology tiles.
Tornado
County Center: 0/100 · Potomac Mills: 8/100
Potomac Mills is 8 points higher.
County Center: Tornado risk derived from NOAA SPC historical reports.
Potomac Mills: Tornado risk derived from NOAA SPC historical reports.
Hail
County Center: 35/100 · Potomac Mills: 78/100
Potomac Mills is 43 points higher.
County Center: Hail risk derived from NOAA SPC historical reports.
Potomac Mills: Hail risk derived from NOAA SPC historical reports.
Storm surge
County Center: Unavailable · Potomac Mills: 93/100
A score difference cannot be calculated without both sources.
County Center: Storm surge model is not available for this location yet.
Potomac Mills: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
County Center: 29/100 · Potomac Mills: 30/100
Potomac Mills is 1 points higher.
County Center: Wildfire exposure derived from ingested fire potential tiles.
Potomac Mills: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
County Center: 40/100 · Potomac Mills: 40/100
No gap.
County Center: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Potomac Mills: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.