WildfireRiskFinder

Tustin, CA

Tustin, CA's wildfire risk, in USFS's own numbers

Very High
86thpercentile nationally

USFS scores Tustin at the 86th national percentile for wildfire risk to structures (in USFS's highest wildfire-risk band nationally), a figure built from 16,517 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 Tustin at the 88th percentile, close to its 86th-percentile risk score.

Where Tustin's buildings actually sit

16,517Total buildings
1.8%Direct exposure
8%Indirect exposure
90.2%Minimal exposure

Only 1.8% of Tustin's 16,517 buildings carry Direct exposure and 8% carry Indirect; the remaining 90.2% are Minimal, which shifts the risk driving this page's score toward the surrounding landscape rather than any one structure. At 16,517 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.

Where Tustin ranks

Tustin ranks lower within California (52nd percentile statewide) than its 86th national percentile suggests alone — a calmer spot in a state where wildfire risk generally runs high. Among the 31,521 US communities USFS scores, Tustin ranks 4,532 for wildfire risk (1 is highest) and 879 by building count (1 is largest). Within California alone, it ranks 765 of 1,570 places by risk. See the full county-by-county picture for California on its state page.

Tustin and the insurance market

Tustin sits in California, one of two states that legally require a wildfire-risk disclosure at sale. California's FAIR Plan, the state's insurer of last resort, ended 2025 with 668,609 residential policies after adding 21,859 in Q4 alone — the kind of market shift a 86th-percentile score like Tustin's can end up mattering for. More on the disclosure law.

What would actually reduce this score

Tustin's 90.2% Minimal-exposure share means structure-level hardening matters less here than it would elsewhere — still worth the low-cost basics, per the home-hardening guide.

Where Tustin's figures come from

The methodology guide shows exactly how USFS turned 16,517 counted buildings into the percentiles shown above for Tustin. The exposure-zones guide covers what Tustin's dominant minimal exposure actually means, with real examples from across the dataset.