Caldwell County, NC

ZIP 28611

In ZIP 28611, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Sugar Mountain Utility has 2 contaminants at or over an EPA legal limit; 6 contaminants are above health goals, led by arsenic at 3,500× 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: U.S. Chemical Storage LLC (79%), mostly chromium.
• Fine particles (PM2.5) average 6.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 2,637 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 28611

• Superfund sites nearbyA
• Factories and industrial sitesA to B
• Oil and gas wellsA to B
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityA to F
• Pesticide useB to C
• Neighborhood health statusF
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsC to D

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

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