ZIP codes in Juneau City and Borough

7 ZIPs touch Juneau City and Borough, Alaska. The blue dashed line is the county border; orange ZIPs reach into it.

7

ZIP codes

0

cross the county line

31,778

people in these ZIPs

30

counties in AK

Most people

Juneau City and Borough ZIP list

Questions people actually ask

How many ZIP codes are in Juneau City and Borough, Alaska?

7 ZIP codes reach into Juneau City and Borough, including 5 PO Box or single-address ZIPs placed by the town they serve. Every ZIP area here lies wholly inside the county.

Which ZIP code in Juneau City and Borough has the most people?

99801 (Juneau) has about 29,588 residents, the most of any ZIP touching Juneau City and Borough, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Juneau City and 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 Juneau City and 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.

Updated 2026-11-10 · Where the data comes from