Yuba County, CA

ZIP 95977

In ZIP 95977, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Cal-Water Service Co.-Marysville has 1 contaminant at or over an EPA legal limit; 14 contaminants are above health goals, led by pfhxs at 1.8× California Notification Level.
• 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: Watts Regulator Co. (62%), mostly chromium.
• Fine particles (PM2.5) average 9.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 514,803 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95977

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA to B
• Parks and nature nearbyB to C
• Air qualityF
• Drinking water qualityA to F
• Pesticide useC to F
• Neighborhood health statusD
• Past wildfire impactsC to F
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsB

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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