Carroll County, IN

ZIP 46923

In ZIP 46923, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Monticello Water Works meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 65× California’s Public Health Goal.
• Nearest Superfund site: Tippecanoe Sanitary Landfill, Inc., 4.7 miles away.
• Largest share of modeled toxic air from industry: Covestro LLC. (86%), mostly propyleneimine.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 272,437 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46923

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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