Natural Disaster Risk — ZIP Code 99171

Natural Hazard Profile: ZIP 99171, Washington

ZIP 99171 covers part of the Saint John area, in the Pacific Northwest. The surrounding region experiences mild, rainy winters west of the Cascades and semi-arid conditions to the east, with a critical wildfire period in eastern Washington each summer shaping the natural hazards that residents of this ZIP code face. Risk scores here are derived from FEMA data for the encompassing county.

FEMA rates ZIP 99171's composite natural disaster risk at 5.1 out of 10 — moderate risk. The area faces significant landslide risk, where mountainous topography and saturated soils during wet periods combine to create hazardous mass movement conditions. Residents should also account for avalanche and cold wave risk in their preparedness planning.

ZIP 99171's risk score, slightly below the 5.8/10 state average and above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA, the highest-scoring are landslide, avalanche, and cold wave. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

With a moderate risk rating, ZIP 99171 residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for landslide is recommended.