Montrose County, CO

ZIP 81403

In ZIP 81403, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Aldasoro Ranch Hoc has 1 contaminant at or over an EPA legal limit; 6 contaminants are above health goals, led by pfoa at 600× California’s Public Health Goal.
• Closer to Superfund sites than 55% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Fine particles (PM2.5) average 3.6 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 68,874 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 81403

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

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

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