Power County, ID

ZIP 83204

In ZIP 83204, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rockland City Of meets every EPA legal limit; 2 contaminants are above health goals, led by arsenic at 1,423× California’s Public Health Goal.
• Closer to Superfund sites than 73% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: J R Simplot Co Don Sid Ing (97%), mostly cadmium compounds.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,338,705 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 83204

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

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

Loading the full report, with every source…