Yolo County, CA

ZIP 95691

In ZIP 95691, 8 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Sacramento Main has 1 contaminant at or over an EPA legal limit; 16 contaminants are above health goals, led by pfos at 4.4× California’s Public Health Goal.
• Closer to Superfund sites than 88% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Mitsubishi Chemical Carbon Fiber & Composites Inc. (39%), mostly hydrogen cyanide.
• Fine particles (PM2.5) average 9.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 1,270,800 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95691

• Superfund sites nearbyA to F
• Factories and industrial sitesB to F
• Oil and gas wellsA to F
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to F
• Radiation signalsB

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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