McKinley County, NM

ZIP 87375

In ZIP 87375, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Fort Defiance-Window Rock-St Michaels NTUA meets every EPA legal limit; 4 contaminants are above health goals, led by arsenic at 1,500× California’s Public Health Goal.
• Closer to Superfund sites than 58% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Fine particles (PM2.5) average 4.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 25,635 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 87375

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

Based on 7 census tracts · compiled October 25, 2026 · how each grade works and its sources

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