City vs city
Columbia vs St. Andrews, SC
Columbia currently scores 3 points higher overall than St. Andrews, with the largest gap in tornado.
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: 50/100 · St. Andrews: 47/100
Columbia is 3 points higher.
Flood
Columbia: 27/100 · St. Andrews: 33/100
St. Andrews is 6 points higher.
Columbia: FEMA NFHL flood zones: 4 features intersect this tile.
St. Andrews: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Columbia: 24/100 · St. Andrews: 23/100
Columbia is 1 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
St. Andrews: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 72/100 · St. Andrews: 69/100
Columbia is 3 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
St. Andrews: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 42/100 · St. Andrews: 8/100
Columbia is 34 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
St. Andrews: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 84/100 · St. Andrews: 100/100
St. Andrews is 16 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
St. Andrews: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · St. Andrews: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
St. Andrews: Storm surge model is not available for this location yet.
Wildfire
Columbia: 73/100 · St. Andrews: 71/100
Columbia is 2 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
St. Andrews: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Columbia: 26/100 · St. Andrews: 27/100
St. Andrews is 1 points higher.
Columbia: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Andrews: Air quality signal derived from the latest EPA AirNow combined AQI grid.