Johnson County, WY

ZIP 82834

In ZIP 82834, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Buffalo, City Of meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 48× 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.
• Fine particles (PM2.5) average 4.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 14,221 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 82834

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

Based on 3 census tracts · compiled September 10, 2026 · how each grade works and its sources

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