Delaware County, OH

ZIP 43066

In ZIP 43066, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Del-Co Water Company, Inc. meets every EPA legal limit; 10 contaminants are above health goals, led by pfoa at 286× 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 (55%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 133,342 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 43066

• Superfund sites nearbyA to C
• Factories and industrial sitesB to C
• Oil and gas wellsC
• Parks and nature nearbyB to C
• Air qualityD
• Drinking water qualityC
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsF

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

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