City vs city
Altamont vs Castlewood, SD
Castlewood currently scores 9 points higher overall than Altamont, 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
Altamont: 35/100 · Castlewood: 44/100
Castlewood is 9 points higher.
Flood
Altamont: 56/100 · Castlewood: 79/100
Castlewood is 23 points higher.
Altamont: FEMA NFHL flood zones: 5 features intersect this tile.
Castlewood: FEMA NFHL flood zones: 12 features intersect this tile.
Wind
Altamont: 20/100 · Castlewood: 20/100
No gap.
Altamont: Wind exposure derived from ingested design wind / climatology tiles.
Castlewood: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Altamont: 45/100 · Castlewood: 49/100
Castlewood is 4 points higher.
Altamont: Lightning exposure derived from ingested climatology tiles.
Castlewood: Lightning exposure derived from ingested climatology tiles.
Tornado
Altamont: 23/100 · Castlewood: 31/100
Castlewood is 8 points higher.
Altamont: Tornado risk derived from NOAA SPC historical reports.
Castlewood: Tornado risk derived from NOAA SPC historical reports.
Hail
Altamont: 26/100 · Castlewood: 71/100
Castlewood is 45 points higher.
Altamont: Hail risk derived from NOAA SPC historical reports.
Castlewood: Hail risk derived from NOAA SPC historical reports.
Storm surge
Altamont: Unavailable · Castlewood: Unavailable
A score difference cannot be calculated without both sources.
Altamont: Storm surge model is not available for this location yet.
Castlewood: Storm surge model is not available for this location yet.
Wildfire
Altamont: 56/100 · Castlewood: 39/100
Altamont is 17 points higher.
Altamont: Wildfire exposure derived from ingested fire potential tiles.
Castlewood: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Altamont: 21/100 · Castlewood: 21/100
No gap.
Altamont: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Castlewood: Air quality signal derived from the latest EPA AirNow combined AQI grid.