Washington County, OR

ZIP 97116

In ZIP 97116, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: North Plains Water Department has 1 contaminant at or over an EPA legal limit; 4 contaminants are above health goals, led by arsenic at 4,250× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Gunderson LLC (90%), mostly nickel.
• Fine particles (PM2.5) average 5.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 156,635 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97116

• Superfund sites nearbyA
• Factories and industrial sitesA to F
• Oil and gas wellsA
• Parks and nature nearbyA to C
• Air qualityA
• Drinking water qualityA to D
• Pesticide useC to F
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB to C

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

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