City vs city
Royse City vs San Antonio, TX
San Antonio currently scores 10 points higher overall than Royse City, 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
Royse City: 35/100 · San Antonio: 45/100
San Antonio is 10 points higher.
Flood
Royse City: 34/100 · San Antonio: 31/100
Royse City is 3 points higher.
Royse City: FEMA NFHL flood zones: 5 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Royse City: 14/100 · San Antonio: 16/100
San Antonio is 2 points higher.
Royse City: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Royse City: 66/100 · San Antonio: 44/100
Royse City is 22 points higher.
Royse City: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Royse City: 4/100 · San Antonio: 42/100
San Antonio is 38 points higher.
Royse City: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Royse City: 40/100 · San Antonio: 100/100
San Antonio is 60 points higher.
Royse City: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Royse City: Unavailable · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Royse City: Storm surge model is not available for this location yet.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Royse City: 61/100 · San Antonio: 54/100
Royse City is 7 points higher.
Royse City: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Royse City: 27/100 · San Antonio: 26/100
Royse City is 1 points higher.
Royse City: 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.