Anoka County, MN

ZIP 55434

In ZIP 55434, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fridley meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 125× California’s Public Health Goal.
• Nearest Superfund site: Boise Cascade/onan Corp./medtronics, Inc., 4.1 miles away (3 within 10 miles).
• Largest share of modeled toxic air from industry: Steris Inc (35%), mostly ethylene oxide.
• Fine particles (PM2.5) average 8.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 26,084 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 55434

• Superfund sites nearbyD to F
• Factories and industrial sitesB to D
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityD to F
• Drinking water qualityC
• Pesticide useB to D
• Neighborhood health statusB to D
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to C
• Radiation signalsC

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

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