Montgomery County, MO

ZIP 63363

In ZIP 63363, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Montgomery City Pws meets every EPA legal limit; 7 contaminants are above health goals, led by dibromochloromethane at 55× California’s Public Health Goal.
• Nearest Superfund site: Riverfront, 6.6 miles away.
• Largest share of modeled toxic air from industry: Ameren Missouri Labadie Energy Center (79%), mostly chromium compounds.
• Fine particles (PM2.5) average 7.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 73,812 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63363

• Superfund sites nearbyA to D
• Factories and industrial sitesB
• Oil and gas wellsA to B
• Parks and nature nearbyC to D
• Air qualityB
• Drinking water qualityA to C
• Pesticide useF
• Neighborhood health statusD to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to D

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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