Columbiana County, OH

ZIP 43945

In ZIP 43945, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Guilford Highlands Mobile Home Park Pws meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 61× California’s Public Health Goal.
• Nearest Superfund site: Trw, Inc. (minerva Plant), 7.2 miles away.
• Largest share of modeled toxic air from industry: W H Sammis Plant (43%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 77,119 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 43945

• Superfund sites nearbyA to C
• Factories and industrial sitesB
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityC
• Drinking water qualityC to F
• Pesticide useD to F
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC to D
• Noise levelsA
• Radiation signalsD

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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