Marion County, OH

ZIP 43337

In ZIP 43337, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aqua Ohio - Marion meets every EPA legal limit; 16 contaminants are above health goals, led by lead at 24× California’s Public Health Goal.
• Nearest Superfund site: Little Scioto River, 4.1 miles away.
• Largest share of modeled toxic air from industry: Whirlpool Corp Marion Operations (38%), mostly diisocyanates.
• Fine particles (PM2.5) average 7.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 176,421 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 43337

• Superfund sites nearbyA to D
• Factories and industrial sitesB to D
• Oil and gas wellsB to F
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsF

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

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