Fallon County, MT

ZIP 59354

In ZIP 59354, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fallon County Water District meets every EPA legal limit; 6 contaminants are above health goals, led by lead at 40× 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: Thatcher Co Of North Dakota Inc (100%), mostly methanol.
• Fine particles (PM2.5) average 5.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 32,925 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 59354

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA

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

Loading the full report, with every source…