Johnson County, IN

ZIP 46106

In ZIP 46106, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Indiana American Water - Johnson County meets every EPA legal limit; 4 contaminants are above health goals, led by pfos at 1.8× California’s Public Health Goal.
• Nearest Superfund site: Pike and Mulberry Streets PCE Plume, 9.3 miles away.
• Largest share of modeled toxic air from industry: Linde Advanced Material Technologies Inc (23%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 119,224 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46106

• Superfund sites nearbyA to C
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityC to D
• Drinking water qualityC
• Pesticide useD to F
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

Based on 5 census tracts · compiled October 25, 2026 · how each grade works and its sources

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