Hamilton County, OH

ZIP 45251

In ZIP 45251, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cincinnati Public Water System meets every EPA legal limit; 10 contaminants are above health goals, led by pfos at 2.6× California’s Public Health Goal.
• Nearest Superfund site: Feed Materials Production Center (usdoe), 6.8 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: The Shepherd Color Co (41%), mostly cobalt compounds.
• Fine particles (PM2.5) average 8.7 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 45251

• Superfund sites nearbyC to D
• Factories and industrial sitesD to F
• Oil and gas wellsB
• Parks and nature nearbyB to C
• Air qualityD
• Drinking water qualityC
• Pesticide useA to C
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsB to C

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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