Iosco County, MI

ZIP 48770

In ZIP 48770, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Whittemore Square Apartments meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 750× California’s Public Health Goal.
• Closer to Superfund sites than 95% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Hyperion Materials & Technologies - West Branch (56%), mostly cobalt.
• Fine particles (PM2.5) average 5.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 23,554 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 48770

• Superfund sites nearbyA to F
• Factories and industrial sitesA
• Oil and gas wellsC to D
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB to C

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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