City vs city
Chula Vista vs Rancho San Diego, CA
Rancho San Diego currently scores 3 points higher overall than Chula Vista, 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
Chula Vista: 21/100 · Rancho San Diego: 24/100
Rancho San Diego is 3 points higher.
Flood
Chula Vista: 31/100 · Rancho San Diego: 30/100
Chula Vista is 1 points higher.
Chula Vista: FEMA NFHL flood zones: 7 features intersect this tile.
Rancho San Diego: FEMA NFHL flood zones: 3 features intersect this tile.
Wind
Chula Vista: 6/100 · Rancho San Diego: 6/100
No gap.
Chula Vista: Wind exposure derived from ingested design wind / climatology tiles.
Rancho San Diego: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Chula Vista: 1/100 · Rancho San Diego: 2/100
Rancho San Diego is 1 points higher.
Chula Vista: Lightning exposure derived from ingested climatology tiles.
Rancho San Diego: Lightning exposure derived from ingested climatology tiles.
Tornado
Chula Vista: 12/100 · Rancho San Diego: 0/100
Chula Vista is 12 points higher.
Chula Vista: Tornado risk derived from NOAA SPC historical reports.
Rancho San Diego: Tornado risk derived from NOAA SPC historical reports.
Hail
Chula Vista: 1/100 · Rancho San Diego: 3/100
Rancho San Diego is 2 points higher.
Chula Vista: Hail risk derived from NOAA SPC historical reports.
Rancho San Diego: Hail risk derived from NOAA SPC historical reports.
Storm surge
Chula Vista: Unavailable · Rancho San Diego: Unavailable
A score difference cannot be calculated without both sources.
Chula Vista: Storm surge model is not available for this location yet.
Rancho San Diego: Storm surge model is not available for this location yet.
Wildfire
Chula Vista: 71/100 · Rancho San Diego: 77/100
Rancho San Diego is 6 points higher.
Chula Vista: Wildfire exposure derived from ingested fire potential tiles.
Rancho San Diego: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Chula Vista: 25/100 · Rancho San Diego: 25/100
No gap.
Chula Vista: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Rancho San Diego: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.