Natrona County, WY

ZIP 82644

In ZIP 82644, 2 of the 12 things we check have at least one part graded D or F.

• Drinking water: Casper, City Of meets every EPA legal limit; 8 contaminants are above health goals, led by lead at 15× California’s Public Health Goal.
• Nearest Superfund site: Mystery Bridge Rd/u.s. Highway 20, 8.0 miles away.
• Largest share of modeled toxic air from industry: Excal Inc. (62%), mostly nickel.
• Fine particles (PM2.5) average 5.0 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 20,547 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 82644

• Superfund sites nearbyA
• Factories and industrial sitesB
• Oil and gas wellsA
• Parks and nature nearbyC
• Air qualityA
• Drinking water qualityD
• Pesticide useC
• Neighborhood health statusC
• Past wildfire impactsD
• Past flood impactsA
• Noise levelsA
• Radiation signalsC

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

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