Open data
for California

This is not a Natural Hazard Disclosure statement. Open state data, explained; flood and dam zones are not covered. Details

Is Aliso Viejo in a fire hazard severity zone?

40.5% of Aliso Viejo is mapped in a fire hazard severity zone, and 33.8% in High or Very High, where the seller disclosures apply.

Very High zone27.3% of the area
High zone6.5%
Moderate zone6.7%
Earthquake fault zone0.0%
Liquefaction zone11.4%
Landslide zone21.3%
Fires recorded since 19504
Land area6.9 sq mi
Median home value (2019-2023)$863,800
Flood and dam zonesnot covered

Aliso Viejo ranks 697 of 1050 California places for the share of land in High or Very High zones.

In land area, that is 1.89 sq mi Very High, 0.45 sq mi High, 0.46 sq mi Moderate, out of 6.92 sq mi. Its High and Very High share of 33.8% is 3.6 points below the 37.4% of Orange County. The median home value of $863,800 is 6% below the county median of $915,500. Among 45 places in the county it ranks 18 for exposure; Williams Canyon ranks first at 100.0%. The latest recorded fire is ALISO in 2018. By decade: 2010s: 4. Seismic maps cover Aliso Viejo with liquefaction 11.4%, landslide 21.3%.

Zones differ from street to street: check the address above. In Orange County overall, 32.7% of the land is Very High.

Fires recorded in or across Aliso Viejo

The state record shows 4 since 1950. The largest was ALISO in 2018 (176 acres in total).

Nearby places compared

All of Orange County