St. Louis County, MO
ZIP 63034
In ZIP 63034, 8 of the 12 things we check have at least one part graded D or F.
- Drinking water: Mo American St Louis St Charles Counties meets every EPA legal limit; 18 contaminants are above health goals, led by lead at 13× 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: Wood River Refinery (29%), mostly chromium compounds.
- Fine particles (PM2.5) average 8.1 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 63034
- Superfund sites nearbyD
- Factories and industrial sitesD
- Oil and gas wellsF
- Parks and nature nearbyC to F
- Air qualityC to D
- Drinking water qualityD
- Pesticide useB to D
- Neighborhood health statusC to D
- Past wildfire impactsA
- Past flood impactsA
- Noise levelsA
- Radiation signalsC
Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources
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