Cass County, MI

ZIP 49120

In ZIP 49120, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hills Haven Mobile Home Park meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 40× California’s Public Health Goal.
• Nearest Superfund site: Douglas Road/uniroyal, Inc., Landfill, 4.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Kennametal Stellite LP (92%), mostly cobalt.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 209,214 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 49120

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

Based on 14 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…