South Riding, VA
South Riding wildfire risk explained
USFS's Wildfire Risk to Communities model puts South Riding at the 17th national percentile for risk to structures, among the lower wildfire-risk places nationally — a score built from 6,453 actual buildings. (Source: USFS's Wildfire Risk to Communities methodology.)
Separately from the risk score above, South Riding's burn probability — fire likelihood with no building count factored in — sits at the 16th percentile nationally.
What "at risk" means for the buildings here
Indirect exposure is dominant in South Riding (78.4% of 6,453 buildings): far enough from burnable vegetation to avoid flame contact, close enough for wind-blown embers. Only 14.6% sit in the Direct zone. At 6,453 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.
Where South Riding ranks
South Riding scores 17th nationally and 8th within Virginia — close enough that its state context doesn't change the picture the national number already gives. Among the 31,521 US communities USFS scores, South Riding ranks 26,112 for wildfire risk (1 is highest) and 2,690 by building count (1 is largest). Within Virginia alone, it ranks 630 of 681 places by risk. See the full county-by-county picture for Virginia on its state page.
What this risk score means for insurance
South Riding's low rating (17th percentile nationally) sits outside the range where wildfire risk alone reshapes an insurance market — still, a homeowner here loses nothing by comparing rates.
Lowering exposure, not just insuring around it
Because 78.4% of South Riding'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.
More on how this number was built
Every one of the two percentiles behind South Riding's 26,112-place national rank traces to USFS's Wildfire Risk to Communities dataset — see the methodology guide. For more on what indirect exposure implies beyond South Riding, see the exposure-zones guide.