Madera County, CA

ZIP 93638

In ZIP 93638, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cal Am - Raymond has 3 contaminants at or over an EPA legal limit; 14 contaminants are above health goals, led by pfos at 3.9× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Ardagh Glass Inc (86%), mostly chromium compounds.
• Fine particles (PM2.5) average 11.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 4,047,585 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 93638

• Superfund sites nearbyA
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyC to F
• Air qualityF
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsA to D
• Radiation signalsC to D

Based on 14 census tracts · compiled September 10, 2026 · how each grade works and its sources

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