St. Francois County, MO

ZIP 63628

In ZIP 63628, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Country Aire Estates meets every EPA legal limit; 1 contaminant is above health goals, led by lead at 23× California’s Public Health Goal.
• Nearest Superfund site: Washington County Lead District - Potosi, 4.1 miles away.
• Largest share of modeled toxic air from industry: Buick Resource Recycling Facility LLC (93%), mostly arsenic compounds.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 45,599 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63628

• Superfund sites nearbyF
• Factories and industrial sitesA to B
• Oil and gas wellsA to B
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityC to D
• Pesticide useD to F
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA to F
• Noise levelsA to D
• Radiation signalsC to D

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

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