Madison County, MO

ZIP 63655

In ZIP 63655, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hidden Valley Fishing Club meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 21× California’s Public Health Goal.
• Nearest Superfund site: Madison County Mines, 0.9 miles away.
• Largest share of modeled toxic air from industry: G.S. Roofing Products Co Inc. (95%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 8,401 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 63655

• Superfund sites nearbyC to F
• Factories and industrial sitesA
• Oil and gas wellsA to B
• Parks and nature nearbyB to D
• Air qualityA
• Drinking water qualityA to D
• Pesticide useD to F
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsC to F
• Noise levelsA
• Radiation signalsC to D

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…