Ada County, ID

ZIP 83704

In ZIP 83704, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: Linda Vista Mobile Home Park has 2 contaminants at or over an EPA legal limit; 4 contaminants are above health goals, led by arsenic at 833× 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: Big Tex Trailer Manufacturing Inc-Caldwell (46%), mostly chromium.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 84,470 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 83704

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB to D
• Air qualityD to F
• Drinking water qualityC to F
• Pesticide useB to D
• Neighborhood health statusA to D
• Past wildfire impactsD
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsF

Based on 13 census tracts · compiled October 25, 2026 · how each grade works and its sources

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