ZIP Code 99840

99840 is one of Alaska's ZIP codes, delivering to addresses in Skagway, Skagway Municipality.

City: Skagway
Borough or census area: Skagway Municipality
State: Alaska
Prefix: 998xx

Where this code sits

99840 is part of the 998xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Skagway.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99840 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99840

The ZIP codes whose reference points sit closest to 99840.
ZIP code	Distance	Delivers to
ZIP code 99827	17 mi	Haines, AK
ZIP code 99821	74 mi	Auke Bay, AK
ZIP code 99826	74 mi	Gustavus, AK
ZIP code 99801	81 mi	Juneau, AK
ZIP code 99812	84 mi	Juneau, AK
ZIP code 99802	87 mi	Juneau, AK
ZIP code 99803	87 mi	Juneau, AK
ZIP code 99811	87 mi	Juneau, AK

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 99840, plotted from its record coordinates.

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

Scope ZIP code 99840. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.