ZIP Code 99635

99635 is one of Alaska's ZIP codes, delivering to addresses in Nikiski, Kenai Peninsula Borough.

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

Where this code sits

99635 is part of the 996xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Nikiski.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99635 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99635

The ZIP codes whose reference points sit closest to 99635.
ZIP code	Distance	Delivers to
ZIP code 99611	6.0 mi	Kenai, AK
ZIP code 99669	16 mi	Soldotna, AK
ZIP code 99672	19 mi	Sterling, AK
ZIP code 99682	26 mi	Tyonek, AK
ZIP code 99610	27 mi	Kasilof, AK
ZIP code 99568	33 mi	Clam Gulch, AK
ZIP code 99639	49 mi	Ninilchik, AK
ZIP code 99556	62 mi	Anchor Point, 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 99635, plotted from its record coordinates.

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

Scope ZIP code 99635. 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.