Anchorage County, AK

ZIP 99502

In ZIP 99502, 1 of the 12 things we check have at least one part graded D or F.

• Drinking water: Moa Municipality Of Anchorage meets every EPA legal limit; 6 contaminants are above health goals, led by arsenic at 436× California’s Public Health Goal.
• Nearest Superfund site: Elmendorf Air Force Base, 7.3 miles away.
• Largest share of modeled toxic air from industry: Tesoro - Anchorage Terminal (90%), mostly benzene.
• Fine particles (PM2.5) average 3.9 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 99502

• Superfund sites nearbyA to D
• Factories and industrial sitesB to C
• Oil and gas wellsB
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityC
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsA

Based on 6 census tracts · compiled October 25, 2026 · how each grade works and its sources

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