Columbia County, OR

ZIP 97056

In ZIP 97056, 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; 12 contaminants are above health goals, led by pfos at 12× California’s Public Health Goal.
• Nearest Superfund site: Alcoa (vancouver Smelter), 5.2 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Gunderson LLC (91%), mostly nickel.
• Fine particles (PM2.5) average 5.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 11,594 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97056

• Superfund sites nearbyA to D
• Factories and industrial sitesA to D
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD to F
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsC to D

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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