Clay County, IN

ZIP 47834

In ZIP 47834, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Indiana American Water - Terre Haute has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 5.2× California’s Public Health Goal.
• Nearest Superfund site: International Minerals (e. Plant), 6.6 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Unison Engine Components Terre Haute (74%), mostly cobalt.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 136,277 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 47834

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

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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