Richland County, SC

ZIP 29177

In ZIP 29177, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Columbia City Of (Sc4010001) has 3 contaminants at or over an EPA legal limit; 14 contaminants are above health goals, led by mercury (inorganic) at 20× European Union Drinking Water Directive.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: Dak Americas Llc-Columbia Site (60%), mostly cobalt compounds.
• Fine particles (PM2.5) average 7.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 43,941 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 29177

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityB
• Drinking water qualityD to F
• Pesticide useC
• Neighborhood health statusB
• Past wildfire impactsA
• Past flood impactsC
• Noise levelsD
• Radiation signalsD

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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