This is not a Natural Hazard Disclosure statement. Open state data, explained; flood and dam zones are not covered. Details
Is Portola Valley in a fire hazard severity zone?
99.6% of Portola Valley is mapped in a fire hazard severity zone, and 66.0% in High or Very High, where the seller disclosures apply.
Portola Valley ranks 442 of 1050 California places for the share of land in High or Very High zones.
In land area, that is 6.00 sq mi High, 3.05 sq mi Moderate, out of 9.09 sq mi. Its High and Very High share of 66.0% is 1.1 points above the 64.9% of San Mateo County. The median home value of $2,000,001 is 34% above the county median of $1,494,500. Among 33 places in the county it ranks 5 for exposure; La Honda ranks first at 100.0%. The latest recorded fire is LEIB in 1962. By decade: 1960s: 1. Seismic maps cover Portola Valley with fault zone 10.9%, liquefaction 8.4%, landslide 44.9%.
Zones differ from street to street: check the address above. In San Mateo County overall, 20.8% of the land is Very High.
Fires recorded in or across Portola Valley
The state record shows 1 since 1950. The largest was LEIB in 1962 (1,328 acres in total).
- LEIB (1962), 1,328 acres
Earthquake fault zone maps
Portola Valley touches the Mindego Hill, Palo Alto maps.
Nearby places compared
- Palo Alto, 2.5 mi east: 37.0% High or Very High, 0 fires, median home $2,000,001
- Ladera, 2.6 mi northeast: 0.0% High or Very High, 0 fires, median home $2,000,001
- Woodside, 3.8 mi northwest: 47.6% High or Very High, 3 fires, median home $2,000,001
- La Honda, 4.0 mi southwest: 100.0% High or Very High, 0 fires, median home $989,600
- Los Altos Hills, 4.3 mi east: 19.3% High or Very High, 0 fires, median home $2,000,001
- West Menlo Park, 4.5 mi north: 0.0% High or Very High, 0 fires, median home $2,000,001
- Stanford, 4.9 mi northeast: 0.0% High or Very High, 0 fires, median home $2,000,001
- Atherton, 5.6 mi north: 0.0% High or Very High, 0 fires, median home $2,000,001
- Los Altos, 6.4 mi east: 0.3% High or Very High, 0 fires, median home $2,000,001
- Emerald Lake Hills, 7.0 mi north: 24.7% High or Very High, 0 fires, median home $2,000,001
- Loyola, 7.2 mi east: 14.7% High or Very High, 0 fires, median home $2,000,001
- Menlo Park, 7.4 mi northeast: 0.0% High or Very High, 0 fires, median home $2,000,001