Iron County, MO

ZIP 63663

In ZIP 63663, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Pilot Knob Pws meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 21× California’s Public Health Goal.
• Closer to Superfund sites than 87% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Buick Resource Recycling Facility LLC (84%), mostly arsenic compounds.
• Fine particles (PM2.5) average 6.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,215 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63663

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to D
• Pesticide useD
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA
• Radiation signalsD

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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