Macomb County, MI

ZIP 48021

In ZIP 48021, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Warren, City Of meets every EPA legal limit; 6 contaminants are above health goals, led by lead at 1,318× California’s Public Health Goal.
• Nearest Superfund site: Ten-Mile Drain, 1.6 miles away.
• Largest share of modeled toxic air from industry: Sms Group Technical Services Warren Div (84%), mostly chromium compounds.
• Fine particles (PM2.5) average 9.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 68,106 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 48021

• Superfund sites nearbyD to F
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyD to F
• Air qualityF
• Drinking water qualityD to F
• Pesticide useC
• Neighborhood health statusC 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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