San Diego County, CA

ZIP 92127

In ZIP 92127, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Santa Fe I.d. has 2 contaminants at or over an EPA legal limit; 16 contaminants are above health goals, led by pfoa at 986× California’s Public Health Goal.
• 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: Watkins Manufacturing (56%), mostly diisocyanates.
• Fine particles (PM2.5) average 8.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 344,328 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 92127

• Superfund sites nearbyA
• Factories and industrial sitesD
• Oil and gas wellsA to C
• Parks and nature nearbyB to C
• Air qualityB to D
• Drinking water qualityC to F
• Pesticide useB to D
• Neighborhood health statusA to B
• Past wildfire impactsF
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsC to D

Based on 12 census tracts · compiled October 25, 2026 · how each grade works and its sources

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