Ontario, OR
How exposed is Ontario to wildfire?
Ontario sits at the 45th percentile nationally for wildfire risk to structures — modestly above the national average for wildfire risk — per USFS's Wildfire Risk to Communities model, built from its 5,172 counted buildings, not vegetation cover alone. (Source: USFS's Wildfire Risk to Communities methodology.)
USFS's separate burn-probability score — fire likelihood alone, before counting what's built there — puts Ontario at the 44th percentile, close to its 45th-percentile risk score.
What "at risk" means for the buildings here
USFS classifies 95.2% of Ontario's buildings as Minimal exposure, the largest of the three zones here by a wide margin over 4.8% Direct and 0% Indirect — a landscape-level risk rather than a building-by-building one. At 5,172 buildings, this is a substantial built environment, so the shares below describe a real population of structures, not a handful of edge cases.
Ontario against the rest of the country
Ontario's risk sits at a similar level relative to Oregon (41st percentile statewide) as it does nationally (45th) — this place isn't unusual for its own state either way. Among the 31,521 US communities USFS scores, Ontario ranks 17,406 for wildfire risk (1 is highest) and 3,332 by building count (1 is largest). Within Oregon alone, it ranks 248 of 420 places by risk. See the full county-by-county picture for Oregon on its state page.
Ontario and the insurance market
Ontario sits in Oregon, one of two states that legally require a wildfire-risk disclosure at sale. Sellers here disclose wildfire-hazard status before closing, the same number this page reports at the 45th national percentile. More on the disclosure law.
Hardening a home in Ontario
Ontario's 95.2% 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 Ontario's figures come from
Ontario's 45th-percentile score and its burn-probability figure both come from the same USFS workbook, documented in the methodology guide. The exposure-zones guide covers what Ontario's dominant minimal exposure actually means, with real examples from across the dataset.