Dubuque County, IA

ZIP 52001

In ZIP 52001, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Dubuque Water Works has 2 contaminants at or over an EPA legal limit; 8 contaminants are above health goals, led by chloroform at 77× California’s Public Health Goal.
• Nearest Superfund site: Peoples Natural Gas Co., 1.2 miles away.
• Largest share of modeled toxic air from industry: Big River United Energy LLC (45%), mostly acrolein.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 210,594 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 52001

• Superfund sites nearbyC to F
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityB to C
• Drinking water qualityA to F
• Pesticide useD to F
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsC to F
• Noise levelsA to D
• Radiation signalsF

Based on 15 census tracts · compiled October 25, 2026 · how each grade works and its sources

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