Honolulu County, HI

ZIP 96819

In ZIP 96819, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hnl-Windward-Pearl Harbor meets every EPA legal limit; 8 contaminants are above health goals, led by arsenic at 250× California’s Public Health Goal.
• Nearest Superfund site: Pearl Harbor Naval Complex, 6.7 miles away.
• Largest share of modeled toxic air from industry: Hffc Airport Fuel Farm (99%), mostly chromium.
• Fine particles (PM2.5) average 3.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 96819

• Superfund sites nearbyD to F
• Factories and industrial sitesB to F
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to C
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsA

Based on 18 census tracts · compiled October 25, 2026 · how each grade works and its sources

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