St. Joseph County, IN

ZIP 46573

In ZIP 46573, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Wakarusa Water Works meets every EPA legal limit; 7 contaminants are above health goals, led by lead at 9.9× California’s Public Health Goal.
• Closer to Superfund sites than 63% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Kennametal Stellite LP (96%), mostly cobalt.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 144,822 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 46573

• Superfund sites nearbyC to D
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityB to C
• Drinking water qualityD
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to D

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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