Maricopa County, AZ

ZIP 85373

In ZIP 85373, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sunrise Water Company meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 1,774× California’s Public Health Goal.
• Nearest Superfund site: Luke Air Force Base, 9.8 miles away.
• Largest share of modeled toxic air from industry: Cornellcookson (78%), mostly chromium.
• Fine particles (PM2.5) average 8.9 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 85373

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsB
• Parks and nature nearbyB to D
• Air qualityD to F
• Drinking water qualityC to F
• Pesticide useC to D
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC to D

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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