Kosciusko County, IN

ZIP 46590

In ZIP 46590, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Riley Resort Land Trust has 1 contaminant at or over an EPA legal limit; 1 contaminant is above health goals, led by arsenic at 3,134× California’s Public Health Goal.
• Nearest Superfund site: Lakeland Disposal Service, Inc., 5.9 miles away.
• Largest share of modeled toxic air from industry: Dalton Corp Warsaw Manufacturing Facility (74%), mostly chromium.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 199,010 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46590

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

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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