City vs city
Blackwater vs San Tan Valley, AZ
Blackwater currently scores 4 points higher overall than San Tan Valley, 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
Blackwater: 27/100 · San Tan Valley: 23/100
Blackwater is 4 points higher.
Flood
Blackwater: 38/100 · San Tan Valley: 35/100
Blackwater is 3 points higher.
Blackwater: FEMA NFHL flood zones: 5 features intersect this tile.
San Tan Valley: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Blackwater: 11/100 · San Tan Valley: 11/100
No gap.
Blackwater: Wind exposure derived from ingested design wind / climatology tiles.
San Tan Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Blackwater: 26/100 · San Tan Valley: 24/100
Blackwater is 2 points higher.
Blackwater: Lightning exposure derived from ingested climatology tiles.
San Tan Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Blackwater: 0/100 · San Tan Valley: 4/100
San Tan Valley is 4 points higher.
Blackwater: Tornado risk derived from NOAA SPC historical reports.
San Tan Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Blackwater: 1/100 · San Tan Valley: 2/100
San Tan Valley is 1 points higher.
Blackwater: Hail risk derived from NOAA SPC historical reports.
San Tan Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Blackwater: Unavailable · San Tan Valley: Unavailable
A score difference cannot be calculated without both sources.
Blackwater: Storm surge model is not available for this location yet.
San Tan Valley: Storm surge model is not available for this location yet.
Wildfire
Blackwater: 64/100 · San Tan Valley: 65/100
San Tan Valley is 1 points higher.
Blackwater: Wildfire exposure derived from ingested fire potential tiles.
San Tan Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Blackwater: 23/100 · San Tan Valley: 22/100
Blackwater is 1 points higher.
Blackwater: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
San Tan Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.