Sussex County, DE

ZIP 19971

In ZIP 19971, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Rehoboth Pump District (Tui) has 2 contaminants at or over an EPA legal limit; 14 contaminants are above health goals, led by pfos at 23× California’s Public Health Goal.
• 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: Perdue Foods LLC - Georgetown Processing Plant (42%), mostly hydrogen sulfide.
• Fine particles (PM2.5) average 5.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 538,410 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 19971

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

Based on 9 census tracts · compiled October 25, 2026 · how each grade works and its sources

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