Lake County, CA

ZIP 95485

In ZIP 95485, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Lake County Csa 21 - North Lakeport meets every EPA legal limit; 10 contaminants are above health goals, led by arsenic at 1,120× California’s Public Health Goal.
• Nearest Superfund site: Sulphur Bank Mercury Mine, 6.0 miles away.
• Largest share of modeled toxic air from industry: Granite Construction Co - Highway 175 (100%), mostly polycyclic aromatic compounds.
• Fine particles (PM2.5) average 12.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 305,708 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95485

• Superfund sites nearbyD to F
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyA
• Air qualityB to F
• Drinking water qualityA to C
• Pesticide useD to F
• Neighborhood health statusD to F
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsA to B

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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