Wake County, NC

ZIP 27604

In ZIP 27604, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rockbridge S/D has 1 contaminant at or over an EPA legal limit; 3 contaminants are above health goals, led by uranium at 292× California’s Public Health Goal.
• Nearest Superfund site: North Carolina State University (lot 86, Farm Unit #1), 4.8 miles away.
• Largest share of modeled toxic air from industry: Mallinckrodt Pharmaceuticals (97%), mostly nitrobenzene.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 205,031 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 27604

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityC to F
• Drinking water qualityB to F
• Pesticide useC to D
• Neighborhood health statusA to C
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsB to D

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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