Union Oregon ZIP Codes

Union holds a single ZIP code.

Every ZIP code in Union

The complete list of Union, Oregon ZIP codes with the county each falls in.
ZIP code	County
97883	Union County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Union codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Union. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Union ZIP code begins 978. Those first three digits identify the sectional center facility that processes mail for this part of Oregon. Statewide that range covers 54 ZIP codes, so Union accounts for 2% of it.

Every Oregon ZIP prefix and the region it covers →

Area codes covering Union

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Union occupies.

Union Oregon area codes in full →

Where Union's ZIP codes sit

Each point is one Union ZIP code, plotted from its record coordinates.

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

Cities near Union

The closest places to Union with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Cove Oregon ZIP codes	6.7 mi	1 ZIP code
North Powder Oregon ZIP codes	13 mi	1 ZIP code
La Grande Oregon ZIP codes	13 mi	1 ZIP code
Imbler Oregon ZIP codes	18 mi	1 ZIP code
Summerville Oregon ZIP codes	21 mi	1 ZIP code
Haines Oregon ZIP codes	21 mi	1 ZIP code
Elgin Oregon ZIP codes	25 mi	1 ZIP code
Lostine Oregon ZIP codes	29 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.