Maricopa County, AZ

ZIP 85337

In ZIP 85337, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aspc Lewis Complex Water System meets every EPA legal limit; 10 contaminants are above health goals, led by lead at 79× California’s Public Health Goal.
• Closer to Superfund sites than 56% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Cornellcookson (95%), mostly chromium.
• Fine particles (PM2.5) average 6.2 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,094,686 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85337

• Superfund sites nearbyA to C
• Factories and industrial sitesA to B
• Oil and gas wellsA to C
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityD to F
• Pesticide useC to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…