Maricopa County, AZ

ZIP 85351

In ZIP 85351, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Epcor - Sun City meets every EPA legal limit; 12 contaminants are above health goals, led by lead at 47× California’s Public Health Goal.
• Nearest Superfund site: Luke Air Force Base, 6.0 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Cornellcookson (54%), mostly 1-bromopropane.
• Fine particles (PM2.5) average 9.0 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 85351

• Superfund sites nearbyA
• Factories and industrial sitesB to C
• Oil and gas wellsB to D
• Parks and nature nearbyD to F
• Air qualityD to F
• Drinking water qualityF
• Pesticide useC to F
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 9 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…