City vs city
Barnwell vs Columbia, SC
Columbia currently scores 5 points higher overall than Barnwell, 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 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
Barnwell: 41/100 · Columbia: 46/100
Columbia is 5 points higher.
Flood
Barnwell: 35/100 · Columbia: 37/100
Columbia is 2 points higher.
Barnwell: FEMA NFHL flood zones: 12 features intersect this tile.
Columbia: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Barnwell: 26/100 · Columbia: 24/100
Barnwell is 2 points higher.
Barnwell: Wind exposure derived from ingested design wind / climatology tiles.
Columbia: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Barnwell: 69/100 · Columbia: 72/100
Columbia is 3 points higher.
Barnwell: Lightning exposure derived from ingested climatology tiles.
Columbia: Lightning exposure derived from ingested climatology tiles.
Tornado
Barnwell: 12/100 · Columbia: 12/100
No gap.
Barnwell: Tornado risk derived from NOAA SPC historical reports.
Columbia: Tornado risk derived from NOAA SPC historical reports.
Hail
Barnwell: 53/100 · Columbia: 83/100
Columbia is 30 points higher.
Barnwell: Hail risk derived from NOAA SPC historical reports.
Columbia: Hail risk derived from NOAA SPC historical reports.
Storm surge
Barnwell: Unavailable · Columbia: Unavailable
A score difference cannot be calculated without both sources.
Barnwell: Storm surge model is not available for this location yet.
Columbia: Storm surge model is not available for this location yet.
Wildfire
Barnwell: 69/100 · Columbia: 67/100
Barnwell is 2 points higher.
Barnwell: Wildfire exposure derived from ingested fire potential tiles.
Columbia: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Barnwell: 26/100 · Columbia: 26/100
No gap.
Barnwell: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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.