Union County Post Offices


Sponsored Listings:

601 Main St
Cove, Oregon 97824

887 Division St
Elgin, Oregon 97827

510 Ruckman Ave
Imbler, Oregon 97841

1202 Washington Ave
La Grande, Oregon 97850

205 E St
North Powder, Oregon 97867

268 N Main St
Union, Oregon 97883

Union County

There are 6 US Post Offices in Union County serving a total of 24,956 residents equating to 4,159 residents per post office. It's estimated that approximately 39,833 packages are handled across the 6 county post offices annually. Union County is a county located in the U.S. state of Oregon. As of the 2010 census, the population was 25,748. Its county seat is La Grande. Union County comprises the La Grande, OR Micropolitan Statistical Area. It is one of the eight counties of eastern Oregon.


Post Offices by ZIP Code

  • 97867 - North Powder OR
  • 97841 - Imbler OR
  • 97827 - Elgin OR
  • 97883 - Union OR
  • 97850 - La Grande OR
  • 97824 - Cove OR