Missoula County, MT

ZIP 59847

In ZIP 59847, 7 of the 12 things we check have at least one part graded D or F.

  • Drinking water: Bitterroot Meadows Hoa Lolo meets every EPA legal limit; 3 contaminants are above health goals, led by arsenic at 1,250× California’s Public Health Goal.
  • Closer to Superfund sites than 61% of U.S. neighborhoods, with no listed site within 10 miles of its center.
  • Largest share of modeled toxic air from industry: Hexion Inc. (50%), mostly formaldehyde.
  • Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
  • About 122,854 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59847

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…

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