ZIP codes in Petersburg Borough
1 ZIPs touch Petersburg Borough, Alaska. The blue dashed line is the county border; orange ZIPs reach into it.
1
ZIP codes
1
cross the county line
3,409
people in these ZIPs
30
counties in AK
Most people
Petersburg Borough ZIP list
More counties in Alaska
- Kusilvak Census Area12
- Lake and Peninsula Borough14
- Matanuska-Susitna Borough14
- Nome Census Area14
- North Slope Borough10
- Northwest Arctic Borough11
- Prince of Wales-Hyder Census Area14
- Sitka City and Borough1
- Skagway Municipality1
- Southeast Fairbanks Census Area7
- Wrangell City and Borough2
- Yakutat City and Borough1
Questions people actually ask
How many ZIP codes are in Petersburg Borough, Alaska?
1 ZIP codes reach into Petersburg Borough. 1 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Petersburg Borough has the most people?
99833 (Petersburg) has about 3,409 residents, the most of any ZIP touching Petersburg Borough, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Petersburg Borough and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Petersburg Borough. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from