Lake County, CA

ZIP 95493

In ZIP 95493, 6 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; 11 contaminants are above health goals, led by lead at 50× California’s Public Health Goal.
• Closer to Superfund sites than 71% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• 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 95493

• Superfund sites nearbyD
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityF
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA
• Radiation signalsB

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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