Cochise County, AZ

ZIP 85630

In ZIP 85630, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tombstone City Of meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 455× California’s Public Health Goal.
• Nearest Superfund site: Apache Powder Co., 6.7 miles away.
• Largest share of modeled toxic air from industry: Arizona Electric Power Cooperative Inc (97%), mostly chromium compounds.
• Fine particles (PM2.5) average 4.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 320,610 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 85630

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

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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