San Diego County, CA

ZIP 92135

In ZIP 92135, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Nas North Island & Nab Coronado meets every EPA legal limit; 9 contaminants are above health goals, led by lead at 29× 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: Steris Isomedix Services (41%), mostly ethylene oxide.
• Fine particles (PM2.5) average 9.4 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 92135

• Superfund sites nearbyA
• Factories and industrial sitesC
• Oil and gas wellsC
• Parks and nature nearbyD
• Air qualityF
• Drinking water qualityD
• Pesticide useC
• Neighborhood health statusA
• Past wildfire impactsA
• Past flood impactsD
• Noise levelsD

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

Loading the full report, with every source…