Delaware County, OH

ZIP 43015

In ZIP 43015, 9 of the 12 things we check have at least one part graded D or F.

• Drinking water: Columbus Public Water System has 2 contaminants at or over an EPA legal limit; 16 contaminants are above health goals, led by lead at 314× California’s Public Health Goal.
• Closer to Superfund sites than 55% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Chroma Color Corp (54%), mostly chromium compounds.
• Fine particles (PM2.5) average 9.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 179,435 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 43015

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

Based on 21 census tracts · compiled September 10, 2026 · how each grade works and its sources

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