City vs city
Aliso Viejo vs Rancho Santa Margarita, CA
Rancho Santa Margarita currently scores 13 points higher overall than Aliso Viejo, with the largest gap in wildfire.
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 is a current EPA AirNow signal; 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
Aliso Viejo: 18/100 · Rancho Santa Margarita: 31/100
Rancho Santa Margarita is 13 points higher.
Flood
Aliso Viejo: 25/100 · Rancho Santa Margarita: 26/100
Rancho Santa Margarita is 1 points higher.
Aliso Viejo: FEMA NFHL flood zones: 5 features intersect this tile.
Rancho Santa Margarita: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Aliso Viejo: 5/100 · Rancho Santa Margarita: 5/100
No gap.
Aliso Viejo: Wind exposure derived from ingested design wind / climatology tiles.
Rancho Santa Margarita: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Aliso Viejo: 1/100 · Rancho Santa Margarita: 1/100
No gap.
Aliso Viejo: Lightning exposure derived from ingested climatology tiles.
Rancho Santa Margarita: Lightning exposure derived from ingested climatology tiles.
Tornado
Aliso Viejo: 8/100 · Rancho Santa Margarita: 0/100
Aliso Viejo is 8 points higher.
Aliso Viejo: Tornado risk derived from NOAA SPC historical reports.
Rancho Santa Margarita: Tornado risk derived from NOAA SPC historical reports.
Hail
Aliso Viejo: 3/100 · Rancho Santa Margarita: 0/100
Aliso Viejo is 3 points higher.
Aliso Viejo: Hail risk derived from NOAA SPC historical reports.
Rancho Santa Margarita: Hail risk derived from NOAA SPC historical reports.
Storm surge
Aliso Viejo: Unavailable · Rancho Santa Margarita: Unavailable
A score difference cannot be calculated without both sources.
Aliso Viejo: Storm surge model is not available for this location yet.
Rancho Santa Margarita: Storm surge model is not available for this location yet.
Wildfire
Aliso Viejo: 65/100 · Rancho Santa Margarita: 95/100
Rancho Santa Margarita is 30 points higher.
Aliso Viejo: Wildfire exposure derived from ingested fire potential tiles.
Rancho Santa Margarita: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Aliso Viejo: 22/100 · Rancho Santa Margarita: 26/100
Rancho Santa Margarita is 4 points higher.
Aliso Viejo: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Rancho Santa Margarita: Air quality signal derived from the latest EPA AirNow combined AQI grid.