Custer County, CO

ZIP 81252

In ZIP 81252, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Tv Hills Water meets every EPA legal limit; 7 contaminants are above health goals, led by bromodichloromethane at 130× 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: Holcim (US) Inc Portland Plant (73%), mostly formaldehyde.
• Fine particles (PM2.5) average 4.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 3,731 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 81252

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

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

Loading the full report, with every source…