Johnston County, NC

ZIP 27576

In ZIP 27576, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Johnston Co-East has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 8.5× California’s Public Health Goal.
• Closer to Superfund sites than 88% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Mallinckrodt Pharmaceuticals (47%), mostly nitrobenzene.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 519,890 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 27576

• Superfund sites nearbyA to F
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyC to D
• Air qualityA to B
• Drinking water qualityA to F
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA to C
• Radiation signalsB to C

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

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