ZIP Code 99731

99731 is one of Alaska's ZIP codes, delivering to addresses in Fort Greely, Southeast Fairbanks Census Area.

City: Fort Greely
Borough or census area: Southeast Fairbanks Census Area
State: Alaska
Prefix: 997xx

Where this code sits

99731 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 Greely.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99731 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99731

The ZIP codes whose reference points sit closest to 99731.
ZIP code	Distance	Delivers to
ZIP code 99737	23 mi	Delta Junction, AK
ZIP code 99714	41 mi	Salcha, AK
ZIP code 99702	53 mi	Eielson Afb, AK
ZIP code 99705	64 mi	North Pole, AK
ZIP code 99716	65 mi	Two Rivers, AK
ZIP code 99703	70 mi	Fort Wainwright, AK
ZIP code 99701	72 mi	Fairbanks, AK
ZIP code 99707	72 mi	Fairbanks, 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 99731, plotted from its record coordinates.

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

Scope ZIP code 99731. 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.