City vs city
Brazoria vs San Antonio, TX
Brazoria currently scores 8 points higher overall than San Antonio, 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
Brazoria: 53/100 · San Antonio: 45/100
Brazoria is 8 points higher.
Flood
Brazoria: 76/100 · San Antonio: 31/100
Brazoria is 45 points higher.
Brazoria: FEMA NFHL flood zones: 3 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Brazoria: 51/100 · San Antonio: 16/100
Brazoria is 35 points higher.
Brazoria: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Brazoria: 49/100 · San Antonio: 44/100
Brazoria is 5 points higher.
Brazoria: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Brazoria: 31/100 · San Antonio: 42/100
San Antonio is 11 points higher.
Brazoria: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Brazoria: 30/100 · San Antonio: 100/100
San Antonio is 70 points higher.
Brazoria: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Brazoria: 99/100 · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Brazoria: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Brazoria: 54/100 · San Antonio: 54/100
No gap.
Brazoria: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Brazoria: 30/100 · San Antonio: 26/100
Brazoria is 4 points higher.
Brazoria: 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 Antonio: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.