Nantucket County, MA

ZIP 02564

In ZIP 02564, none of the 12 things we check has a part graded D or F.

• Drinking water: Siasconset Water Department meets every EPA legal limit; 3 contaminants are above health goals, led by pfos at 1.1× 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: Island Energy Services (100%), mostly benzene.
• Fine particles (PM2.5) average 4.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 83 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 02564

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusC
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA

Based on 1 census tract · compiled October 25, 2026 · how each grade works and its sources

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