City vs city
Bridgewater vs Spencer, SD
Bridgewater currently scores 2 points higher overall than Spencer, 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
Bridgewater: 46/100 · Spencer: 44/100
Bridgewater is 2 points higher.
Flood
Bridgewater: 44/100 · Spencer: 47/100
Spencer is 3 points higher.
Bridgewater: FEMA NFHL flood zones: 3 features intersect this tile.
Spencer: FEMA NFHL flood zones: 4 features intersect this tile.
Wind
Bridgewater: 21/100 · Spencer: 21/100
No gap.
Bridgewater: Wind exposure derived from ingested design wind / climatology tiles.
Spencer: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Bridgewater: 48/100 · Spencer: 57/100
Spencer is 9 points higher.
Bridgewater: Lightning exposure derived from ingested climatology tiles.
Spencer: Lightning exposure derived from ingested climatology tiles.
Tornado
Bridgewater: 77/100 · Spencer: 50/100
Bridgewater is 27 points higher.
Bridgewater: Tornado risk derived from NOAA SPC historical reports.
Spencer: Tornado risk derived from NOAA SPC historical reports.
Hail
Bridgewater: 64/100 · Spencer: 71/100
Spencer is 7 points higher.
Bridgewater: Hail risk derived from NOAA SPC historical reports.
Spencer: Hail risk derived from NOAA SPC historical reports.
Storm surge
Bridgewater: Unavailable · Spencer: Unavailable
A score difference cannot be calculated without both sources.
Bridgewater: Storm surge model is not available for this location yet.
Spencer: Storm surge model is not available for this location yet.
Wildfire
Bridgewater: 44/100 · Spencer: 42/100
Bridgewater is 2 points higher.
Bridgewater: Wildfire exposure derived from ingested fire potential tiles.
Spencer: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Bridgewater: 21/100 · Spencer: 21/100
No gap.
Bridgewater: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Spencer: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.