Oregon County, MO

ZIP 65778

In ZIP 65778, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Oregon County Pwsd 2 has 1 contaminant at or over an EPA legal limit; 4 contaminants are above health goals, led by nitrite at 5.1× https://pmc.ncbi.nlm.nih.gov/articles/PMC4535738/.
• 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: Esna Arkansas (91%), mostly chromium.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 9,028 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 65778

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityC
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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