City vs city
Columbia vs Millersville, PA
Millersville currently scores 5 points higher overall than Columbia, 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 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
Columbia: 37/100 · Millersville: 42/100
Millersville is 5 points higher.
Flood
Columbia: 64/100 · Millersville: 62/100
Columbia is 2 points higher.
Columbia: FEMA NFHL flood zones: 2 features intersect this tile.
Millersville: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Columbia: 21/100 · Millersville: 21/100
No gap.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Millersville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 45/100 · Millersville: 46/100
Millersville is 1 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Millersville: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 15/100 · Millersville: 8/100
Columbia is 7 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Millersville: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 34/100 · Millersville: 74/100
Millersville is 40 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Millersville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Millersville: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Millersville: Storm surge model is not available for this location yet.
Wildfire
Columbia: 38/100 · Millersville: 40/100
Millersville is 2 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Millersville: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 44/100 · Millersville: 44/100
No gap.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Millersville: Air quality signal derived from the latest EPA AirNow combined AQI grid.