City vs city
Columbia vs Ellicott City, MD
Columbia and Ellicott City 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 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: 33/100 · Ellicott City: 33/100
No gap.
Flood
Columbia: 22/100 · Ellicott City: 22/100
No gap.
Columbia: FEMA NFHL flood zones: 4 features intersect this tile.
Ellicott City: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Columbia: 21/100 · Ellicott City: 21/100
No gap.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Ellicott City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 38/100 · Ellicott City: 38/100
No gap.
Columbia: Lightning exposure derived from ingested climatology tiles.
Ellicott City: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 15/100 · Ellicott City: 15/100
No gap.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Ellicott City: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 58/100 · Ellicott City: 58/100
No gap.
Columbia: Hail risk derived from NOAA SPC historical reports.
Ellicott City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Ellicott City: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Ellicott City: Storm surge model is not available for this location yet.
Wildfire
Columbia: 38/100 · Ellicott City: 38/100
No gap.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Ellicott City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 42/100 · Ellicott City: 42/100
No gap.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Ellicott City: Air quality signal derived from the latest EPA AirNow combined AQI grid.