Sanders County, MT

ZIP 59873

In ZIP 59873, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Salish Shores Trade Winds Comm Village meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 923× California’s Public Health Goal.
• Closer to Superfund sites than 54% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Thompson River Lumber (74%), mostly lead.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 12,794 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59873

• Superfund sites nearbyC
• Factories and industrial sitesA to B
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusF
• Past wildfire impactsD to F
• Past flood impactsA
• Noise levelsA
• Radiation signalsD to F

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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