Franklin County, OH

ZIP 43221

In ZIP 43221, 6 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.
• Nearest Superfund site: Air Force Plant 85, 7.2 miles away.
• Largest share of modeled toxic air from industry: Mills Metal Finishing (52%), mostly chromium.
• Fine particles (PM2.5) average 9.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 62,630 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 43221

• Superfund sites nearbyA to C
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityF
• Pesticide useC
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

Based on 16 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…