ZIP Code 99578

99578 is one of Alaska's ZIP codes, delivering to addresses in Eek, Bethel Census Area.

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

Where this code sits

99578 is part of the 995xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Eek.

Eek Alaska ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99578 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99578

The ZIP codes whose reference points sit closest to 99578.
ZIP code	Distance	Delivers to
ZIP code 99680	23 mi	Tuntutuliak, AK
ZIP code 99634	33 mi	Napakiak, AK
ZIP code 99655	33 mi	Quinhagak, AK
ZIP code 99545	35 mi	Kongiganak, AK
ZIP code 99559	41 mi	Bethel, AK
ZIP code 99622	45 mi	Kwigillingok, AK
ZIP code 99621	46 mi	Kwethluk, AK
ZIP code 99641	49 mi	Nunapitchuk, 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 99578, plotted from its record coordinates.

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

Scope ZIP code 99578. 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.