Gallatin County, MT

ZIP 59741

In ZIP 59741, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: North Star Zoot Water has 1 contaminant at or over an EPA legal limit; 11 contaminants are above health goals, led by tetrachloroethylene at 783× California’s Public Health Goal.
• Closer to Superfund sites than 57% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Jtl Group Belgrade Dba Knife River - Belgrade (67%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 5.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 223,696 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59741

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

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

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