Pima County, AZ

ZIP 85641

In ZIP 85641, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Spanish Trail Water Company meets every EPA legal limit; 3 contaminants are above health goals, led by lead at 46× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Swan Rd. Asphalt Plant (39%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 5.2 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 85641

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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