Cass County, MO

ZIP 64083

In ZIP 64083, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cass County Pwsd 3 meets every EPA legal limit; 5 contaminants are above health goals, led by lead at 19× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Harcros Chemicals Inc (76%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 110,549 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 64083

• Superfund sites nearbyA
• Factories and industrial sitesB to C
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityB to C
• Drinking water qualityC to D
• Pesticide useD to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsD to F

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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