ZIP Code 99740

99740 is one of Alaska's ZIP codes, delivering to addresses in Fort Yukon, Yukon-Koyukuk Census Area.

City: Fort Yukon
Borough or census area: Yukon-Koyukuk Census Area
State: Alaska
Prefix: 997xx

Where this code sits

99740 is part of the 997xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fort Yukon.

Fort Yukon Alaska ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99740 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99740

The ZIP codes whose reference points sit closest to 99740.
ZIP code	Distance	Delivers to
ZIP code 99788	43 mi	Chalkyitsik, AK
ZIP code 99781	44 mi	Venetie, AK
ZIP code 99724	60 mi	Beaver, AK
ZIP code 99733	61 mi	Circle, AK
ZIP code 99730	77 mi	Central, AK
ZIP code 99722	108 mi	Arctic Village, AK
ZIP code 99716	126 mi	Two Rivers, AK
ZIP code 99705	137 mi	North Pole, 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 99740, plotted from its record coordinates.

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

Scope ZIP code 99740. 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.