ZIP Code 99751

99751 is one of Alaska's ZIP codes, delivering to addresses in Kobuk, Northwest Arctic Borough.

City: Kobuk
Borough or census area: Northwest Arctic Borough
State: Alaska
Prefix: 997xx

Where this code sits

99751 is part of the 997xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Kobuk.

Kobuk Alaska ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99751 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99751

The ZIP codes whose reference points sit closest to 99751.
ZIP code	Distance	Delivers to
ZIP code 99773	7.0 mi	Shungnak, AK
ZIP code 99786	29 mi	Ambler, AK
ZIP code 99746	86 mi	Huslia, AK
ZIP code 99745	94 mi	Hughes, AK
ZIP code 99754	142 mi	Koyukuk, AK
ZIP code 99741	150 mi	Galena, AK
ZIP code 99765	155 mi	Nulato, AK
ZIP code 99768	156 mi	Ruby, 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 99751, plotted from its record coordinates.

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

Scope ZIP code 99751. 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.