St. Louis County, MO
ZIP 63105
In ZIP 63105, 3 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; 10 contaminants are above health goals, led by lithium at 3.8× the USGS health-based screening level.
- Nearest Superfund site: St. Louis Airport/hazelwood Interim Storage/futura Coatings Co., 6.8 miles away (3 within 10 miles).
- Largest share of modeled toxic air from industry: Control Devices (33%), 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 63105
- Superfund sites nearbyA to D
- Factories and industrial sitesD
- Oil and gas wellsA to B
- Parks and nature nearbyC
- Air qualityF
- Drinking water qualityC
- Pesticide useA to C
- Neighborhood health statusA to B
- Past wildfire impactsA
- Past flood impactsC
- Noise levelsA to C
- Radiation signalsB to C
Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources
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