Jefferson County, MO

ZIP 63047

In ZIP 63047, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Mackenzie Ridge Llc meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 33× California’s Public Health Goal.
• Nearest Superfund site: Southwest Jefferson County Mining, 5.5 miles away.
• Largest share of modeled toxic air from industry: Metaltek International Inc. (42%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 17,788 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63047

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityC to F
• Pesticide useD
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsD
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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