ZIP Code 99591

99591 is one of Alaska's ZIP codes, delivering to addresses in Saint George Island, Aleutians West Census Area.

City: Saint George Island
Borough or census area: Aleutians West Census Area
State: Alaska
Prefix: 995xx

Where this code sits

99591 is part of the 995xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Saint George Island.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99591 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99591

The ZIP codes whose reference points sit closest to 99591.
ZIP code	Distance	Delivers to
ZIP code 99660	48 mi	Saint Paul Island, AK
ZIP code 99692	223 mi	Dutch Harbor, AK
ZIP code 99685	223 mi	Unalaska, 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 99591, plotted from its record coordinates.

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

Scope ZIP code 99591. 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.