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; 4 contaminants are above health goals, led by lithium at 27× the USGS health-based screening level.
• Closer to Superfund sites than 56% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• 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
• Oil and gas wellsA to C
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC to D
• Pesticide useC to D
• Neighborhood health statusB to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD to F

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

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