ZIP Code 99639

99639 is one of Alaska's ZIP codes, delivering to addresses in Ninilchik, Kenai Peninsula Borough.

City: Ninilchik
Borough or census area: Kenai Peninsula Borough
State: Alaska
Prefix: 996xx

Where this code sits

99639 is part of the 996xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Ninilchik.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99639 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99639

The ZIP codes whose reference points sit closest to 99639.
ZIP code	Distance	Delivers to
ZIP code 99556	12 mi	Anchor Point, AK
ZIP code 99568	17 mi	Clam Gulch, AK
ZIP code 99610	24 mi	Kasilof, AK
ZIP code 99603	36 mi	Homer, AK
ZIP code 99669	37 mi	Soldotna, AK
ZIP code 99663	39 mi	Seldovia, AK
ZIP code 99611	44 mi	Kenai, AK
ZIP code 99672	44 mi	Sterling, 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 99639, plotted from its record coordinates.

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

Scope ZIP code 99639. 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.