ZIP Code 97603

97603 is one of Oregon's ZIP codes, delivering to addresses in Klamath Falls, Klamath County.

City: Klamath Falls
County: Klamath County
State: Oregon
Prefix: 976xx

Where this code sits

97603 is part of the 976xx range, the group of codes handled by one mail processing centre. Klamath Falls is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Klamath Falls page.

Klamath Falls Oregon ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 97603 delivers to without sharing its boundary.

ZIP codes nearest 97603

The ZIP codes whose reference points sit closest to 97603.
ZIP code	Distance	Delivers to
ZIP code 97602	3.7 mi	Klamath Falls, OR
ZIP code 97634	6.5 mi	Midland, OR
ZIP code 97601	8.5 mi	Klamath Falls, OR
ZIP code 97625	11 mi	Dairy, OR
ZIP code 97627	12 mi	Keno, OR
ZIP code 97633	13 mi	Merrill, OR
ZIP code 97632	20 mi	Malin, OR
ZIP code 97623	20 mi	Bonanza, OR

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 97603, plotted from its record coordinates.

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

Scope ZIP code 97603. 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.