Sitka City and County, AK
ZIP 99835
In ZIP 99835, 1 of the 12 things we check have at least one part graded D or F.
- Drinking water: Port Alexander Pws meets every EPA legal limit; 6 contaminants are above health goals, led by chloroform at 87× California’s Public Health Goal.
- Closer to Superfund sites than 0% of U.S. neighborhoods, with no listed site within 10 miles of its center.
- Fine particles (PM2.5) average 3.3 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
Grades for ZIP 99835
- Superfund sites nearbyA
- Factories and industrial sitesB to D
- Oil and gas wellsA
- Parks and nature nearbyA
- Air qualityA
- Drinking water qualityB to C
- Neighborhood health statusB
- Past wildfire impactsA
- Past flood impactsA
Based on 2 census tracts · compiled October 25, 2026 · how each grade works and its sources
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Other ZIP codes in Sitka City and County
ZIP 99835 is the only ZIP code we grade in Sitka City and County.
All of Sitka City and County · All of Alaska · How grades work