Marion County, OH

ZIP 43314

In ZIP 43314, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mt Gilead Village Pws meets every EPA legal limit; 13 contaminants are above health goals, led by lead at 269× California’s Public Health Goal.
• Nearest Superfund site: Little Scioto River, 9.6 miles away.
• Largest share of modeled toxic air from industry: Sika Corp-Marion Operations (28%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 129,503 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 43314

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

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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