Sussex County, DE

ZIP 19958

In ZIP 19958, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Brumbley's Family Park has 1 contaminant at or over an EPA legal limit; 3 contaminants are above health goals, led by lead at 22× California’s Public Health Goal.
• Nearest Superfund site: Millsboro TCE, 7.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Trinity Sterile (86%), mostly ethylene oxide.
• 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 19958

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

Based on 16 census tracts · compiled October 25, 2026 · how each grade works and its sources

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