ZIP Code 97838

97838 is one of Oregon's ZIP codes, delivering to addresses in Hermiston, Umatilla County.

City: Hermiston
County: Umatilla County
State: Oregon
Prefix: 978xx

Where this code sits

97838 is part of the 978xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hermiston.

Hermiston Oregon ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 97838 delivers to without sharing its boundary.

ZIP codes nearest 97838

The ZIP codes whose reference points sit closest to 97838.
ZIP code	Distance	Delivers to
ZIP code 97882	5.1 mi	Umatilla, OR
ZIP code 97875	5.4 mi	Stanfield, OR
ZIP code 99346	8.2 mi	Plymouth, WA
ZIP code 97826	8.4 mi	Echo, OR
ZIP code 97844	11 mi	Irrigon, OR
ZIP code 97818	21 mi	Boardman, OR
ZIP code 99338	22 mi	Kennewick, WA
ZIP code 99337	24 mi	Kennewick, WA

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 97838, plotted from its record coordinates.

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

Scope ZIP code 97838. 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.