This is not a Natural Hazard Disclosure statement. Open state data, explained; flood and dam zones are not covered. Details
Is Altadena in a fire hazard severity zone?
45.7% of Altadena is mapped in a fire hazard severity zone, and 39.2% in High or Very High, where the seller disclosures apply.
Altadena ranks 653 of 1050 California places for the share of land in High or Very High zones.
In land area, that is 2.70 sq mi Very High, 0.62 sq mi High, 0.55 sq mi Moderate, out of 8.47 sq mi. Its High and Very High share of 39.2% is 6.8 points above the 32.4% of Los Angeles County. The median home value of $1,073,500 is 37% above the county median of $783,300. Among 142 places in the county it ranks 39 for exposure; Pepperdine University ranks first at 100.0%. The latest recorded fire is EATON in 2025. By decade: 1950s: 1, 1960s: 3, 1970s: 2, 1990s: 3, 2000s: 2, 2020s: 1. Seismic maps cover Altadena with fault zone 13.3%, liquefaction 1.5%, landslide 9.5%.
Zones differ from street to street: check the address above. In Los Angeles County overall, 29.4% of the land is Very High.
Fires recorded in or across Altadena
The state record shows 12 since 1950. The largest was STATION in 2009 (160,833 acres in total).
- EATON (2025), 14,056 acres
- STATION (2009), 160,833 acres
- LOWE (2007), 14 acres
- KINNELOA (1993), 5,453 acres
- GLEN ALLEN (1993), 27 acres
- VINEHILL (1992), 12 acres
- PINECREST/USFS (1979), 5,306 acres
- (unnamed) (1979), 2 acres
- (unnamed) (1968), 18 acres
- (unnamed) (1962), 545 acres
- (unnamed) (1960), 24 acres
- WOODWARDIA (1959), 14,403 acres
Earthquake fault zone maps
Altadena touches the Mount Wilson, Pasadena maps.
Nearby places compared
- Pasadena, 2.1 mi west: 30.4% High or Very High, 15 fires, median home $1,045,000
- La Cañada Flintridge, 3.7 mi west: 99.1% High or Very High, 12 fires, median home $2,000,001
- San Pasqual, 4.2 mi southeast: 0.0% High or Very High, 0 fires, median home $1,209,200
- East Pasadena, 5.1 mi southeast: 0.0% High or Very High, 0 fires, median home $1,002,700
- San Marino, 5.2 mi south: 0.0% High or Very High, 0 fires, median home $2,000,001
- Sierra Madre, 5.3 mi east: 62.4% High or Very High, 15 fires, median home $1,172,200
- South Pasadena, 5.7 mi south: 25.1% High or Very High, 1 fire, median home $1,545,100
- East San Gabriel, 6.1 mi southeast: 0.0% High or Very High, 0 fires, median home $955,000
- Glendale, 6.2 mi west: 72.4% High or Very High, 36 fires, median home $1,043,900
- La Crescenta-Montrose, 6.3 mi northwest: 84.1% High or Very High, 5 fires, median home $1,151,100
- Arcadia, 6.6 mi southeast: 11.4% High or Very High, 12 fires, median home $1,336,500
- San Gabriel, 7.3 mi south: 0.0% High or Very High, 0 fires, median home $899,000