Madera County, CA

ZIP 93637

In ZIP 93637, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Madera has 1 contaminant at or over an EPA legal limit; 12 contaminants are above health goals, led by lead at 76× California’s Public Health Goal.
• Closer to Superfund sites than 57% 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 (91%), mostly chromium compounds.
• Fine particles (PM2.5) average 9.5 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 93637

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

Based on 15 census tracts · compiled September 10, 2026 · how each grade works and its sources

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