Orange County, CA

ZIP 90620

In ZIP 90620, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Anaheim has 2 contaminants at or over an EPA legal limit; 17 contaminants are above health goals, led by pfhxs at 1.3× California Notification Level.
• Nearest Superfund site: Mccoll, 2.8 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Recold (17%), mostly ethylene oxide.
• Fine particles (PM2.5) average 14.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 206,209 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 90620

• Superfund sites nearbyD to F
• Factories and industrial sitesF
• Oil and gas wellsF
• Parks and nature nearbyC
• Air qualityF
• Drinking water qualityC to F
• Pesticide useB to D
• Neighborhood health statusA to B
• Past wildfire impactsA to C
• Past flood impactsA
• Noise levelsA to D

Based on 14 census tracts · compiled October 25, 2026 · how each grade works and its sources

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