Washington County, UT

ZIP 84774

In ZIP 84774, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: North Valley Ranches Sub meets every EPA legal limit; 2 contaminants are above health goals, led by lead at 10× California’s Public Health Goal.
• Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: St George Steel LLC (69%), mostly chromium.
• Fine particles (PM2.5) average 5.1 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 26,300 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 84774

• Superfund sites nearbyA
• Factories and industrial sitesA
• Oil and gas wellsA
• Parks and nature nearbyB
• Air qualityA
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsD to F
• Past flood impactsA
• Noise levelsA to B
• Radiation signalsC to D

Based on 2 census tracts · compiled September 10, 2026 · how each grade works and its sources

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