City vs city
Frederick vs Union Bridge, MD
Frederick currently scores 10 points higher overall than Union Bridge, 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
Frederick: 35/100 · Union Bridge: 25/100
Frederick is 10 points higher.
Flood
Frederick: 20/100 · Union Bridge: 20/100
No gap.
Frederick: FEMA NFHL flood zones: 3 features intersect this tile.
Union Bridge: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Frederick: 20/100 · Union Bridge: 20/100
No gap.
Frederick: Wind exposure derived from ingested design wind / climatology tiles.
Union Bridge: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Frederick: 26/100 · Union Bridge: 30/100
Union Bridge is 4 points higher.
Frederick: Lightning exposure derived from ingested climatology tiles.
Union Bridge: Lightning exposure derived from ingested climatology tiles.
Tornado
Frederick: 15/100 · Union Bridge: 8/100
Frederick is 7 points higher.
Frederick: Tornado risk derived from NOAA SPC historical reports.
Union Bridge: Tornado risk derived from NOAA SPC historical reports.
Hail
Frederick: 74/100 · Union Bridge: 16/100
Frederick is 58 points higher.
Frederick: Hail risk derived from NOAA SPC historical reports.
Union Bridge: Hail risk derived from NOAA SPC historical reports.
Storm surge
Frederick: Unavailable · Union Bridge: Unavailable
A score difference cannot be calculated without both sources.
Frederick: Storm surge model is not available for this location yet.
Union Bridge: Storm surge model is not available for this location yet.
Wildfire
Frederick: 47/100 · Union Bridge: 39/100
Frederick is 8 points higher.
Frederick: Wildfire exposure derived from ingested fire potential tiles.
Union Bridge: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Frederick: 42/100 · Union Bridge: 42/100
No gap.
Frederick: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Union Bridge: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.