Beaufort County, SC

ZIP 29920

In ZIP 29920, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fripp Island Psd (Sc0720002) has 1 contaminant at or over an EPA legal limit; 9 contaminants are above health goals, led by pfos at 4.6× California’s Public Health Goal.
• Nearest Superfund site: Parris Island Marine Corps Recruit Depot, 6.6 miles away.
• Largest share of modeled toxic air from industry: Balchem Corp (96%), mostly ethylene oxide.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 104,686 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29920

• Superfund sites nearbyC to D
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityB
• Drinking water qualityC to D
• Pesticide useC to D
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsA

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…