Morrow County, OR

ZIP 97843

In ZIP 97843, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lexington, Town Of meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 550× California’s Public Health Goal.
• Closer to Superfund sites than 53% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Alto Columbia LLC (98%), mostly acetaldehyde.
• Fine particles (PM2.5) average 6.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,328,988 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 97843

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…