Beaufort County, SC

ZIP 29909

In ZIP 29909, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hilton Head Psd 1 (0720006) has 2 contaminants at or over an EPA legal limit; 15 contaminants are above health goals, led by pfos at 5× California’s Public Health Goal.
• Nearest Superfund site: Parris Island Marine Corps Recruit Depot, 9.6 miles away.
• Largest share of modeled toxic air from industry: International Paper Co - Savannah Complex (29%), mostly formaldehyde.
• Fine particles (PM2.5) average 7.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 6,733 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29909

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

Based on 7 census tracts · compiled September 10, 2026 · how each grade works and its sources

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