Santa Cruz County, CA

ZIP 95066

In ZIP 95066, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Villa Del Monte Mwc has 1 contaminant at or over an EPA legal limit; 10 contaminants are above health goals, led by arsenic at 173× California’s Public Health Goal.
• Nearest Superfund site: Watkins-Johnson Co. (stewart Division Plant), 1.3 miles away.
• Largest share of modeled toxic air from industry: Tesla Inc. (72%), mostly cobalt compounds.
• Fine particles (PM2.5) average 6.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 702,318 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 95066

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

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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