Jerome County, ID

ZIP 83335

In ZIP 83335, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Twin Falls City Of meets every EPA legal limit; 15 contaminants are above health goals, led by vanadium at 1.5× 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: Alto Magic Valley LLC (74%), mostly acetaldehyde.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,173,257 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 83335

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

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

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