Zip Area Code

Union County, Oregon

Union County, Oregon, has 8 towns and 7 ZIP codes, in area code 541, with 458 as an overlay.

Towns in Union County, A to Z

TownZIP codesArea codes
Cove97824541, 458
Elgin97827541, 458
Imbler97841541, 458
Islandnearest97850541, 458
La Grande97850541, 458
North Powder97867541, 458
Summerville97876541, 458
Union97883541, 458

ZIP codes in Union County

Area codes in Union County

  • Area code 541

    In service since November 5, 1995. Shares its area with 458. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 458

    In service since February 10, 2010. Shares its area with 541. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.