Dillon County, SC

ZIP 29565

In ZIP 29565, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Marco Rural Water Co (Sc3320001) meets every EPA legal limit; 11 contaminants are above health goals, led by lead at 17× California’s Public Health Goal.
• Closer to Superfund sites than 55% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Domtar Paper Co (31%), mostly formaldehyde.
• Fine particles (PM2.5) average 6.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 172,377 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29565

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

Based on 6 census tracts · compiled September 10, 2026 · how each grade works and its sources

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