Alaska ZIP Codes

ZIP codes: 273
Cities & towns: 228
Boroughs and census areas: 30
Area codes: 1

How Alaska ZIP codes are numbered

995xx–999xx

The first three digits identify the sectional center facility that processes mail for a region, so an Alaska ZIP code can be placed geographically from its prefix alone. Each row names the city holding the most codes in that prefix.

Alaska three-digit ZIP prefixes, the codes in each, and the city that holds the most of them.
Prefix	ZIP codes	Main area
995xx	69	Anchorage
996xx	89	Wasilla
997xx	82	Fairbanks
998xx	20	Juneau
999xx	13	Ketchikan

Where Alaska's communities sit

Each point is an Alaska community with a published ZIP code list, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Alaska cities by ZIP code count

largest 25

Area codes serving Alaska

907 Anchorage

Scope every ZIP code recorded in Alaska. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. The map outline is a convex envelope of published places, not a state boundary.