Bonner County, ID

ZIP 83856

In ZIP 83856, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sandy Shore & Sunnyside Meadows meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 2,084× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Safran Cabin Materials LLC (94%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,316 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 83856

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

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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