ZIP Code 99557

99557 is one of Alaska's ZIP codes, delivering to addresses in Aniak, Bethel Census Area.

City: Aniak
Borough or census area: Bethel Census Area
State: Alaska
Prefix: 995xx

Where this code sits

99557 is part of the 995xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Aniak.

Aniak Alaska ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99557 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99557

The ZIP codes whose reference points sit closest to 99557.
ZIP code	Distance	Delivers to
ZIP code 99607	27 mi	Kalskag, AK
ZIP code 99626	28 mi	Lower Kalskag, AK
ZIP code 99602	44 mi	Holy Cross, AK
ZIP code 99575	53 mi	Crooked Creek, AK
ZIP code 99679	57 mi	Tuluksak, AK
ZIP code 99657	63 mi	Russian Mission, AK
ZIP code 99552	73 mi	Akiak, AK
ZIP code 99665	76 mi	Shageluk, 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 99557, plotted from its record coordinates.

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

Scope ZIP code 99557. 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.