St. Joseph County, IN

ZIP 46536

In ZIP 46536, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: South Bend Water Works has 1 contaminant at or over an EPA legal limit; 18 contaminants are above health goals, led by pfos at 3.4× California’s Public Health Goal.
• Nearest Superfund site: Whiteford Sales & Service Inc./nationalease, 4.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Kennametal Stellite LP (84%), mostly cobalt.
• Fine particles (PM2.5) average 7.1 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 46536

• Superfund sites nearbyA to D
• Factories and industrial sitesC
• Oil and gas wellsA to C
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityD to F
• 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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