Dakota County, MN

ZIP 55118

In ZIP 55118, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Saint Paul Regional Water Services meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 125× California’s Public Health Goal.
• Nearest Superfund site: Koppers Coke, 4.7 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: St Paul Park Refining Co LLC (48%), mostly cobalt compounds.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 219,011 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 55118

• Superfund sites nearbyC to D
• Factories and industrial sitesD to F
• Oil and gas wellsA
• Parks and nature nearbyB to C
• Air qualityD to F
• Drinking water qualityC
• Pesticide useA to F
• Neighborhood health statusA to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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