Johnson County, KS

ZIP 66018

In ZIP 66018, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Clearview City, City Of meets every EPA legal limit; 8 contaminants are above health goals, led by bromodichloromethane at 202× California’s Public Health Goal.
• Nearest Superfund site: Chemical Commodities, Inc., 8.7 miles away.
• Largest share of modeled toxic air from industry: Harcros Chemicals Inc (73%), mostly ethylene oxide.
• Fine particles (PM2.5) average 6.8 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 49,881 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 66018

• Superfund sites nearbyA to C
• Factories and industrial sitesD
• Oil and gas wellsD to F
• Parks and nature nearbyB to C
• Air qualityB
• Drinking water qualityC
• Pesticide useD
• Neighborhood health statusB to C
• Past wildfire impactsA
• Past flood impactsB
• Noise levelsA to D
• Radiation signalsF

Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…