ZIP Code 97840

97840 is one of Oregon's ZIP codes, delivering to addresses in Oxbow, Baker County.

City: Oxbow
County: Baker County
State: Oregon
Prefix: 978xx

Where this code sits

97840 is part of the 978xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oxbow.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 97840 delivers to without sharing its boundary.

ZIP codes nearest 97840

The ZIP codes whose reference points sit closest to 97840.
ZIP code	Distance	Delivers to
ZIP code 97834	13 mi	Halfway, OR
ZIP code 97870	25 mi	Richland, OR
ZIP code 83612	25 mi	Council, ID
ZIP code 83610	28 mi	Cambridge, ID
ZIP code 83654	28 mi	New Meadows, ID
ZIP code 97846	31 mi	Joseph, OR
ZIP code 83643	32 mi	Mesa, ID
ZIP code 83547	34 mi	Pollock, ID

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 97840, plotted from its record coordinates.

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

Scope ZIP code 97840. 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.