Port St. John, FL
Port St. John, FL's wildfire risk, in USFS's own numbers
USFS's Wildfire Risk to Communities model puts Port St. John at the 99th national percentile for risk to structures, in USFS's highest wildfire-risk band nationally — a score built from 9,801 actual buildings. (Source: USFS's Wildfire Risk to Communities methodology.)
USFS's separate burn-probability score — fire likelihood alone, before counting what's built there — puts Port St. John at the 99th percentile, close to its 99th-percentile risk score.
Port St. John's building exposure, zone by zone
74.1% of Port St. John's 9,801 buildings fall in USFS's Indirect exposure zone — ember cast rather than direct flame — against 25% Direct and 0.8% Minimal. Vent screens and roofing material matter more here than lot clearing alone. At 9,801 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.
How Port St. John compares
Port St. John scores 99th nationally and 99th within Florida — close enough that its state context doesn't change the picture the national number already gives. Among the 31,521 US communities USFS scores, Port St. John ranks 352 for wildfire risk (1 is highest) and 1,662 by building count (1 is largest). Within Florida alone, it ranks 11 of 955 places by risk. See the full county-by-county picture for Florida on its state page.
Port St. John and the insurance market
Port St. John's very high rating (99th percentile) puts it among the places where the national carrier-pullback trend is most relevant — not a guarantee of a coverage problem, but a reason to shop rather than assume.
What would actually reduce this score
Because 74.1% of Port St. John's buildings sit in the Indirect zone, sealing the ember pathway (vents, roofing, gutters) is the intervention this page's data actually supports — see the home-hardening guide.
Where Port St. John's figures come from
The methodology guide shows exactly how USFS turned 9,801 counted buildings into the percentiles shown above for Port St. John. The exposure-zones guide covers what Port St. John's dominant indirect exposure actually means, with real examples from across the dataset.