Clark County, NV

ZIP 89142

In ZIP 89142, 4 of the 12 things we check have at least one part graded D or F.

• Drinking water: Henderson City Of meets every EPA legal limit; 15 contaminants are above health goals, led by lithium at 4.7× the USGS health-based screening level.
• 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: Emd Acquisition LLC (67%), mostly manganese compounds.
• Fine particles (PM2.5) average 7.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 7,640 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 89142

• Superfund sites nearbyA
• Factories and industrial sitesB to C
• Oil and gas wellsC
• Parks and nature nearbyA to D
• Air qualityA to C
• Drinking water qualityC
• Pesticide useA
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsF

Based on 10 census tracts · compiled October 25, 2026 · how each grade works and its sources

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