City vs city
Castalian Springs vs Hartsville, TN
Hartsville currently scores 1 points higher overall than Castalian Springs, 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
Castalian Springs: 32/100 · Hartsville: 33/100
Hartsville is 1 points higher.
Flood
Castalian Springs: 32/100 · Hartsville: 49/100
Hartsville is 17 points higher.
Castalian Springs: FEMA NFHL flood zones: 4 features intersect this tile.
Hartsville: FEMA NFHL flood zones: 15 features intersect this tile.
Wind
Castalian Springs: 14/100 · Hartsville: 14/100
No gap.
Castalian Springs: Wind exposure derived from ingested design wind / climatology tiles.
Hartsville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Castalian Springs: 49/100 · Hartsville: 47/100
Castalian Springs is 2 points higher.
Castalian Springs: Lightning exposure derived from ingested climatology tiles.
Hartsville: Lightning exposure derived from ingested climatology tiles.
Tornado
Castalian Springs: 12/100 · Hartsville: 27/100
Hartsville is 15 points higher.
Castalian Springs: Tornado risk derived from NOAA SPC historical reports.
Hartsville: Tornado risk derived from NOAA SPC historical reports.
Hail
Castalian Springs: 47/100 · Hartsville: 25/100
Castalian Springs is 22 points higher.
Castalian Springs: Hail risk derived from NOAA SPC historical reports.
Hartsville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Castalian Springs: Unavailable · Hartsville: Unavailable
A score difference cannot be calculated without both sources.
Castalian Springs: Storm surge model is not available for this location yet.
Hartsville: Storm surge model is not available for this location yet.
Wildfire
Castalian Springs: 31/100 · Hartsville: 34/100
Hartsville is 3 points higher.
Castalian Springs: Wildfire exposure derived from ingested fire potential tiles.
Hartsville: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Castalian Springs: 36/100 · Hartsville: 34/100
Castalian Springs is 2 points higher.
Castalian Springs: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Hartsville: Air quality signal derived from the latest EPA AirNow combined AQI grid.