Allen County, KS

ZIP 66742

In ZIP 66742, 6 of the 12 things we check have at least one part graded D or F.

• Drinking water: Woodson Co Rwd 1 meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 16× California’s Public Health Goal.
• Nearest Superfund site: Former United Zinc & Associated Smelters, 3.1 miles away.
• Largest share of modeled toxic air from industry: Ash Grove Cement Co (96%), mostly chromium compounds.
• Fine particles (PM2.5) average 6.7 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 104,928 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 66742

• Superfund sites nearbyD
• Factories and industrial sitesA
• Oil and gas wellsF
• Parks and nature nearbyD
• Air qualityA
• Drinking water qualityC to D
• Pesticide useF
• Neighborhood health statusD
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA
• Radiation signalsC

Based on 1 census tract · compiled September 10, 2026 · how each grade works and its sources

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