What to know about ZIP 98158
ZIP code 98158 covers SeaTac, WA in King County.
It sits in telephone area code 206; U.S. House district WA-9; the SEATTLE - TACOMA media market.
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SeaTac city, WA
ZIP Code 98158 — SeaTac city, WA Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Low Snow Area
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At a glance
Overview of ZIP Code 98158
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for SeaTac city, WA as Very High (composite score 99.7), which is among the highest nationally. The strongest component scores on US5 are flood (99.5) and wildfire (79.5). 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 SeaTac city, WA show little to no average snow and around 39.3 inches of annual precipitation.
Nearby (from this ZIP)
Airport SEA (0.2 miles (0.3 km)) · Highline College (4.3 miles (6.9 km)) · Wing Luke Museum Affiliated Area (10.3 miles (16.5 km)) · VA: VA Puget Sound Health Care System - Seattle Division (7.7 miles (12.4 km))
Full lists and map pins are in the Infrastructure section below.