Marshall County, MS

ZIP 38661

In ZIP 38661, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: City Of Holly Springs has 2 contaminants at or over an EPA legal limit; 11 contaminants are above health goals, led by pfos at 9.4× California’s Public Health Goal.
• Nearest Superfund site: Ross Metals Inc., 9.6 miles away.
• Largest share of modeled toxic air from industry: Sterilization Services Of Tennessee (55%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 62,706 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 38661

• Superfund sites nearbyA to D
• Factories and industrial sitesA to C
• Oil and gas wellsA to B
• Parks and nature nearbyD
• Air qualityB
• Drinking water qualityC to F
• Pesticide useF
• Neighborhood health statusC to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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