ZIP Code 99901

99901 is one of Alaska's ZIP codes, delivering to addresses in Ketchikan, Ketchikan Gateway Borough.

City

Ketchikan

Borough or census area

Ketchikan Gateway Borough

State

Alaska

Prefix

999xx

Where this code sits

99901 is part of the 999xx range, the group of codes handled by one mail processing centre. Ketchikan is served by 2 ZIP codes in total; the full list, with the borough or census area each falls in, is on the Ketchikan page.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99901 delivers to without sharing its boundary.

ZIP codes nearest 99901

The ZIP codes whose reference points sit closest to 99901.
ZIP code	Distance	Delivers to
ZIP code 99928	1.6 mi	Ward Cove, AK
ZIP code 99950	2.5 mi	Ketchikan, AK
ZIP code 99926	18 mi	Metlakatla, AK
ZIP code 99903	34 mi	Meyers Chuck, AK
ZIP code 99919	38 mi	Thorne Bay, AK
ZIP code 99922	46 mi	Hydaburg, AK
ZIP code 99918	58 mi	Coffman Cove, AK
ZIP code 99929	78 mi	Wrangell, 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 99901, plotted from its record coordinates.

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

Scope ZIP code 99901. 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.