King County, WA

ZIP 98025

In ZIP 98025, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Stone Creek Estates Water Assn. meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 400× California’s Public Health Goal.
• Nearest Superfund site: Queen City Farms, 6.9 miles away.
• Largest share of modeled toxic air from industry: Puget Sound Coatings (41%), mostly diisocyanates.
• Fine particles (PM2.5) average 5.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 17,223 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98025

• Superfund sites nearbyD
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityA to C
• Pesticide useA
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsA

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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