Kalawao County, HI

ZIP 96742

In ZIP 96742, none of the 12 things we check has a part graded D or F.

• Drinking water: Kalaupapa Nhp meets every EPA legal limit; 5 contaminants are above health goals, led by dibromochloromethane at 37× 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: Maui Electric Co Ltd Palaau Generating Station (56%), mostly naphthalene.
• Fine particles (PM2.5) average 3.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 96742

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Air qualityA
• Drinking water qualityC
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsA

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

Loading the full report, with every source…