Pima County, AZ

ZIP 85742

In ZIP 85742, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Marana Municipal - Hartman Vistas has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 23× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Johns Manville (84%), mostly chromium.
• Fine particles (PM2.5) average 7.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 77,498 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85742

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

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

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