Davis County, UT

ZIP 84037

In ZIP 84037, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Layton City Water System meets every EPA legal limit; 14 contaminants are above health goals, led by di(2-ethylhexyl) phthalate at 30× California’s Public Health Goal.
• Nearest Superfund site: Hill Air Force Base, 7.8 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Kennecott Utah Copper Smelter & Refinery (59%), mostly arsenic compounds.
• Fine particles (PM2.5) average 7.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 15,863 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 84037

• Superfund sites nearbyA to D
• Factories and industrial sitesC to D
• Oil and gas wellsA
• Parks and nature nearbyB to F
• Air qualityA to C
• Drinking water qualityD
• Pesticide useC to D
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsD to F

Based on 12 census tracts · compiled September 10, 2026 · how each grade works and its sources

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