Topanga, CA
Topanga wildfire risk explained
USFS scores Topanga at the 100th national percentile for wildfire risk to structures (in USFS's highest wildfire-risk band nationally), a figure built from 4,363 real buildings rather than raw vegetation cover. (Source: USFS's Wildfire Risk to Communities methodology.)
USFS's separate burn-probability score — fire likelihood alone, before counting what's built there — puts Topanga at the 99th percentile, close to its 100th-percentile risk score.
Topanga's building exposure, zone by zone
Direct exposure dominates in Topanga: 67.3% of its 4,363 buildings, versus 24.9% Indirect and 7.8% Minimal. Clearing space around a structure changes the outcome here more than any single building-material swap.
Where Topanga ranks
Topanga scores 100th nationally and 95th within California — close enough that its state context doesn't change the picture the national number already gives. Among the 31,521 US communities USFS scores, Topanga ranks 130 for wildfire risk (1 is highest) and 3,916 by building count (1 is largest). Within California alone, it ranks 87 of 1,570 places by risk. See the full county-by-county picture for California on its state page.
What this risk score means for insurance
Because Topanga is in California, a wildfire-hazard disclosure is legally required before a sale closes here — unusual nationally, since only these two states mandate it. The state's FAIR Plan alone carried 668,609 policies by the end of 2025. Full detail in the disclosure-law guide.
Lowering exposure, not just insuring around it
Topanga's 67.3% Direct-exposure share means lot clearing around the structure typically outweighs any single material upgrade here. The home-hardening guide ranks the options for a place shaped like this.
More on how this number was built
Topanga's 100th-percentile score and its burn-probability figure both come from the same USFS workbook, documented in the methodology guide. For more on what direct exposure implies beyond Topanga, see the exposure-zones guide.