Yavapai County, AZ

ZIP 86303

In ZIP 86303, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ponderosa Park Dwid meets every EPA legal limit; 11 contaminants are above health goals, led by arsenic at 575× California’s Public Health Goal.
• Nearest Superfund site: Iron King Mine - Humboldt Smelter, 9.3 miles away.
• Largest share of modeled toxic air from industry: Sturm Ruger & Co Inc (96%), mostly chromium.
• Fine particles (PM2.5) average 5.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 16,947 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 86303

• Superfund sites nearbyA to D
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyA to C
• Air qualityA
• Drinking water qualityB to F
• Pesticide useB
• Neighborhood health statusC to D
• Past wildfire impactsC to F
• Past flood impactsA
• Noise levelsA to B
• Radiation signalsB to D

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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