St. Joseph County, MI

ZIP 49091

In ZIP 49091, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: White Pigeon has 1 contaminant at or over an EPA legal limit; 3 contaminants are above health goals, led by pfoa at 771× California’s Public Health Goal.
• Nearest Superfund site: Sturgis Municipal Wells, 0.6 miles away.
• Largest share of modeled toxic air from industry: Kennametal Stellite LP (91%), mostly cobalt.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 372,457 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 49091

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

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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