St. Louis County, MO

ZIP 63124

In ZIP 63124, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Kirkwood Pws meets every EPA legal limit; 11 contaminants are above health goals, led by lead at 813× California’s Public Health Goal.
• Nearest Superfund site: St. Louis Airport/hazelwood Interim Storage/futura Coatings Co., 6.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Control Devices (44%), mostly chromium.
• Fine particles (PM2.5) average 9.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 18,909 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63124

• Superfund sites nearbyA to D
• Factories and industrial sitesD to F
• Oil and gas wellsA to B
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityD to F
• Pesticide useB to D
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsC

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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