Eagle County, CO

ZIP 81657

In ZIP 81657, 3 of the 12 things we check have at least one part graded D or F.

• Drinking water: Minturn Town Of meets every EPA legal limit; 9 contaminants are above health goals, led by arsenic at 1,000× California’s Public Health Goal.
• Nearest Superfund site: Eagle Mine, 4.8 miles away.
• Largest share of modeled toxic air from industry: Climax Molybdenum Co Henderson Mill (97%), mostly chromium.
• Fine particles (PM2.5) average 4.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 3,337 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 81657

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

Based on 4 census tracts · compiled September 10, 2026 · how each grade works and its sources

Loading the full report, with every source…