Oakland County, MI
ZIP 48309
In ZIP 48309, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Auburn Hills meets every EPA legal limit; 6 contaminants are above health goals, led by lead at 33× California’s Public Health Goal.
- Nearest Superfund site: J & L Landfill, 3.2 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Sms Group Technical Services Warren Div (19%), mostly chromium compounds.
- Fine particles (PM2.5) average 8.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
- About 21,843 kg of agricultural pesticides are applied in the county each year.
Grades for ZIP 48309
- Superfund sites nearbyC to F
- Factories and industrial sitesC to D
- Oil and gas wellsA to B
- Parks and nature nearbyD to F
- Air qualityC to F
- Drinking water qualityC to F
- Pesticide useB to D
- Neighborhood health statusA to D
- Past wildfire impactsA
- Past flood impactsA
- Noise levelsA to D
Based on 11 census tracts · compiled September 10, 2026 · how each grade works and its sources
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