City vs city
Fairfax Station vs Union Mill, VA
Fairfax Station and Union Mill 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
Fairfax Station: 33/100 · Union Mill: 33/100
No gap.
Flood
Fairfax Station: 33/100 · Union Mill: 33/100
No gap.
Fairfax Station: FEMA NFHL flood zones: 8 features intersect this tile.
Union Mill: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Fairfax Station: 20/100 · Union Mill: 20/100
No gap.
Fairfax Station: Wind exposure derived from ingested design wind / climatology tiles.
Union Mill: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Fairfax Station: 40/100 · Union Mill: 40/100
No gap.
Fairfax Station: Lightning exposure derived from ingested climatology tiles.
Union Mill: Lightning exposure derived from ingested climatology tiles.
Tornado
Fairfax Station: 27/100 · Union Mill: 27/100
No gap.
Fairfax Station: Tornado risk derived from NOAA SPC historical reports.
Union Mill: Tornado risk derived from NOAA SPC historical reports.
Hail
Fairfax Station: 44/100 · Union Mill: 44/100
No gap.
Fairfax Station: Hail risk derived from NOAA SPC historical reports.
Union Mill: Hail risk derived from NOAA SPC historical reports.
Storm surge
Fairfax Station: Unavailable · Union Mill: Unavailable
A score difference cannot be calculated without both sources.
Fairfax Station: Storm surge model is not available for this location yet.
Union Mill: Storm surge model is not available for this location yet.
Wildfire
Fairfax Station: 29/100 · Union Mill: 29/100
No gap.
Fairfax Station: Wildfire exposure derived from ingested fire potential tiles.
Union Mill: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Fairfax Station: 40/100 · Union Mill: 40/100
No gap.
Fairfax Station: 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 Mill: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.