Pima County, AZ
ZIP 85756
In ZIP 85756, 9 of the 12 things we check have at least one part graded D or F.
- Drinking water: La Casita Water Company 3 meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 925× California’s Public Health Goal.
- Nearest Superfund site: Tucson International Airport Area, 1.1 miles away.
- Largest share of modeled toxic air from industry: Caid Industries A Div Of Samuel Son & Co. (USA) (62%), mostly chromium.
- Fine particles (PM2.5) average 7.9 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 85756
- Superfund sites nearbyC to F
- Factories and industrial sitesA to C
- Oil and gas wellsA to D
- Parks and nature nearbyB to D
- Air qualityA to D
- Drinking water qualityA to C
- Pesticide useB to D
- Neighborhood health statusA to F
- Past wildfire impactsA to D
- Past flood impactsA
- Noise levelsA to F
- Radiation signalsD to F
Based on 14 census tracts · compiled October 25, 2026 · how each grade works and its sources
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