ZIP Code 97818

97818 is one of Oregon's ZIP codes, delivering to addresses in Boardman, Morrow County.

City: Boardman
County: Morrow County
State: Oregon
Prefix: 978xx

Where this code sits

97818 is part of the 978xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Boardman.

Boardman Oregon ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 97818 delivers to without sharing its boundary.

ZIP codes nearest 97818

The ZIP codes whose reference points sit closest to 97818.
ZIP code	Distance	Delivers to
ZIP code 97844	11 mi	Irrigon, OR
ZIP code 99345	12 mi	Paterson, WA
ZIP code 99346	17 mi	Plymouth, WA
ZIP code 97882	18 mi	Umatilla, OR
ZIP code 97843	20 mi	Ione, OR
ZIP code 99322	21 mi	Bickleton, WA
ZIP code 97838	21 mi	Hermiston, OR
ZIP code 97875	25 mi	Stanfield, 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 97818, plotted from its record coordinates.

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

Scope ZIP code 97818. 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.