ZIP Code 99603

99603 is one of Alaska's ZIP codes, delivering to addresses in Homer, Kenai Peninsula Borough.

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

Where this code sits

99603 is part of the 996xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Homer.

Homer Alaska ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99603 delivers to without sharing its boundary.

907 Area code 907

ZIP codes nearest 99603

The ZIP codes whose reference points sit closest to 99603.
ZIP code	Distance	Delivers to
ZIP code 99663	17 mi	Seldovia, AK
ZIP code 99556	27 mi	Anchor Point, AK
ZIP code 99639	36 mi	Ninilchik, AK
ZIP code 99568	48 mi	Clam Gulch, AK
ZIP code 99610	54 mi	Kasilof, AK
ZIP code 99669	65 mi	Soldotna, AK
ZIP code 99672	69 mi	Sterling, AK
ZIP code 99611	74 mi	Kenai, 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 99603, plotted from its record coordinates.

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

Scope ZIP code 99603. 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.