What to know about ZIP 98609
ZIP code 98609 covers WA in Cowlitz County.
It sits in telephone area codes 360, 564; U.S. House district WA-3; the PORTLAND, OR media market.
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ZIP Code 98609 — undefined, WA Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Map, Quick Facts & Location
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At a glance
Overview of ZIP Code 98609
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for WA as Relatively Moderate (composite score 90.3), which is among the highest nationally. The strongest component scores on US5 are flood (88.3) and wildfire (61.3). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.
Climate normals for WA show limited published climate normals on US5.