Multnomah County, OR

ZIP 97231

In ZIP 97231, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Vancouver City Of has 2 contaminants at or over an EPA legal limit; 10 contaminants are above health goals, led by pfos at 11× California’s Public Health Goal.
• Nearest Superfund site: Gould, Inc., 0.9 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Gunderson LLC (99%), mostly nickel.
• Fine particles (PM2.5) average 5.2 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 97231

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

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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