Honolulu County, HI

ZIP 96791

In ZIP 96791, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Schofield Barracks meets every EPA legal limit; 4 contaminants are above health goals, led by vanadium at 1.8× California’s Public Health Goal.
• Nearest Superfund site: Schofield Barracks (usarmy), 5.9 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Hawaiian Electric Co Inc Kahe Generating Station (49%), mostly nickel compounds.
• Fine particles (PM2.5) average 3.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 96791

• Superfund sites nearbyA to F
• Factories and industrial sitesA
• Oil and gas wellsA
• Air qualityA
• Drinking water qualityB to F
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsA

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

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