Anchorage County, AK

ZIP 99501

In ZIP 99501, 2 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, 1.1 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Tesoro - Anchorage Terminal (86%), mostly benzene.
• Fine particles (PM2.5) average 5.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.

Grades for ZIP 99501

• Superfund sites nearbyF
• Factories and industrial sitesB
• Oil and gas wellsB
• Parks and nature nearbyB to C
• Air qualityA
• Drinking water qualityA to C
• Neighborhood health statusA to F
• Past wildfire impactsA
• Past flood impactsA
• Radiation signalsA to C

Based on 8 census tracts · compiled October 25, 2026 · how each grade works and its sources

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