Jefferson County, MO

ZIP 63049

In ZIP 63049, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Weber Hill Mhp meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 30× California’s Public Health Goal.
• Nearest Superfund site: Times Beach, 3.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Control Devices (46%), mostly chromium compounds.
• Fine particles (PM2.5) average 8.3 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 63049

• Superfund sites nearbyF
• Factories and industrial sitesB to C
• Oil and gas wellsA to C
• Parks and nature nearbyC to D
• Air qualityC to D
• Drinking water qualityA to F
• Pesticide useC to D
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsF
• Noise levelsA
• Radiation signalsC to D

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

Loading the full report, with every source…