City vs city
Houston vs San Antonio, TX
Houston currently scores 1 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
Houston: 44/100 · San Antonio: 43/100
Houston is 1 points higher.
Flood
Houston: 43/100 · San Antonio: 26/100
Houston is 17 points higher.
Houston: FEMA NFHL flood zones: 20 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Houston: 43/100 · San Antonio: 17/100
Houston is 26 points higher.
Houston: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Houston: 70/100 · San Antonio: 37/100
Houston is 33 points higher.
Houston: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Houston: 35/100 · San Antonio: 38/100
San Antonio is 3 points higher.
Houston: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Houston: 43/100 · San Antonio: 100/100
San Antonio is 57 points higher.
Houston: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Houston: Unavailable · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Houston: Storm surge model is not available for this location yet.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Houston: 45/100 · San Antonio: 57/100
San Antonio is 12 points higher.
Houston: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Houston: 28/100 · San Antonio: 28/100
No gap.
Houston: 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.