Yakima County, WA

ZIP 98937

In ZIP 98937, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cowiche Water Association meets every EPA legal limit; 4 contaminants are above health goals, led by lead at 32× California’s Public Health Goal.
• Nearest Superfund site: Pesticide Lab (yakima), 4.4 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Triumph Actuation Systems-Yakima (77%), mostly chromium.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,424,406 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 98937

• Superfund sites nearbyA to C
• Factories and industrial sitesB to C
• Oil and gas wellsA to C
• Parks and nature nearbyB to D
• Air qualityA to C
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsC to F
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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