Shawnee County, KS

ZIP 66546

In ZIP 66546, 7 of the 12 things we check have at least one part graded D or F.

• Drinking water: Metro Topeka Airport Authority meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 46× 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: American Phoenix Inc. - Topeka Ks (98%), mostly cobalt compounds.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 103,017 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 66546

• Superfund sites nearbyA
• Factories and industrial sitesB to D
• Oil and gas wellsA to C
• Parks and nature nearbyC to D
• Air qualityA to C
• Drinking water qualityD to F
• Pesticide useF
• Neighborhood health statusC to D
• Past wildfire impactsA
• Past flood impactsB to C
• Noise levelsA to D
• Radiation signalsD

Based on 5 census tracts · compiled September 10, 2026 · how each grade works and its sources

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