Hamilton County, OH

ZIP 45203

In ZIP 45203, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cincinnati Public Water System has 2 contaminants at or over an EPA legal limit; 14 contaminants are above health goals, led by lead at 64× California’s Public Health Goal.
• Nearest Superfund site: Newport Dump, 5.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Shepherd Chemical Co (40%), mostly cobalt compounds.
• Fine particles (PM2.5) average 9.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 20,564 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 45203

• Superfund sites nearbyA
• Factories and industrial sitesF
• Oil and gas wellsC
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityD to F
• Pesticide useB to C
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to F
• Radiation signalsD

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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