Clay County, KS

ZIP 67432

In ZIP 67432, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Riley Co Rwd 1 meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 134× California’s Public Health Goal.
• Closer to Superfund sites than 85% of U.S. neighborhoods, with no listed site within 10 miles of its center.
• Largest share of modeled toxic air from industry: US Army Fort Riley-Garrison (96%), mostly lead compounds.
• Fine particles (PM2.5) average 6.4 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 79,101 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 67432

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

Based on 4 census tracts · compiled October 25, 2026 · how each grade works and its sources

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