Butte County, SD

ZIP 57717

In ZIP 57717, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Ken's Trailer Court meets every EPA legal limit; 1 contaminant is above health goals, led by lead at 34× 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.
• Largest share of modeled toxic air from industry: Basin Electric Dry Fork Station (100%), mostly chromium.
• Fine particles (PM2.5) average 5.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 20,971 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 57717

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

Based on 8 census tracts · compiled September 10, 2026 · how each grade works and its sources

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