Hawaii County, HI

ZIP 96720

In ZIP 96720, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hakalau-Wailea meets every EPA legal limit; 6 contaminants are above health goals, led by bromoform at 7.1× 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: Hawaii Electric Light Co Inc Hill Generating Station (99%), mostly sulfuric acid.
• Fine particles (PM2.5) average 2.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 96720

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

Based on 11 census tracts · compiled October 25, 2026 · how each grade works and its sources

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