Marion County, OR

ZIP 97375

In ZIP 97375, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Silverton, City Of meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 70× 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: Orchid Orthopedic Solutions Oregon Inc (96%), mostly cobalt.
• Fine particles (PM2.5) average 10.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 368,378 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97375

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityF
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusD
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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