City vs city
Columbia vs Marion, SC
Marion currently scores 8 points higher overall than Columbia, 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 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
Columbia: 46/100 · Marion: 54/100
Marion is 8 points higher.
Flood
Columbia: 37/100 · Marion: 42/100
Marion is 5 points higher.
Columbia: FEMA NFHL flood zones: 7 features intersect this tile.
Marion: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Columbia: 24/100 · Marion: 38/100
Marion is 14 points higher.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Marion: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Columbia: 72/100 · Marion: 67/100
Columbia is 5 points higher.
Columbia: Lightning exposure derived from ingested climatology tiles.
Marion: Lightning exposure derived from ingested climatology tiles.
Tornado
Columbia: 12/100 · Marion: 73/100
Marion is 61 points higher.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Marion: Tornado risk derived from NOAA SPC historical reports.
Hail
Columbia: 83/100 · Marion: 65/100
Columbia is 18 points higher.
Columbia: Hail risk derived from NOAA SPC historical reports.
Marion: Hail risk derived from NOAA SPC historical reports.
Storm surge
Columbia: Unavailable · Marion: Unavailable
A score difference cannot be calculated without both sources.
Columbia: Storm surge model is not available for this location yet.
Marion: Storm surge model is not available for this location yet.
Wildfire
Columbia: 67/100 · Marion: 71/100
Marion is 4 points higher.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Marion: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Columbia: 26/100 · Marion: 25/100
Columbia is 1 points higher.
Columbia: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Marion: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.