Shoshone County, ID

ZIP 83868

In ZIP 83868, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Central Shoshone County Water Dist meets every EPA legal limit; 1 contaminant is above health goals, led by tthm at 7.5× Peer-Reviewed Research.
• Nearest Superfund site: Bunker Hill Mining & Metallurgical Complex, 3.6 miles away.
• Largest share of modeled toxic air from industry: U.S. Silver - Idaho Inc (46%), mostly lead compounds.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 187 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 83868

• Superfund sites nearbyF
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to B
• Pesticide useC
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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