Union is a city in Union County, Oregon, United States, originally platted in 1864, and located 15 miles (24 km) southeast of La Grande.

[6] It is also home to Oregon State University's Eastern Oregon Agricultural Research Center, founded in 1888, which is contemporarily housed in the former Union train station.

He had promised to bring an end to the political chaos that had plagued the town for the last two years, which included three councilmen and mayor Deborah Clark being removed in recall elections.

"[10] Since then, one newspaper reports that "talk around town about whether the young mayor will succeed ranges from skepticism to sunny optimism.

"[11] Union lies in the extreme southeast corner of the Grande Ronde Valley near the western edge of the Wallowa Mountains.

Oregon Route 203 also passes through Union, linking it to La Grande, about 20 miles (32 km) to the northwest.

Catherine Creek, a tributary of the Grande Ronde River, passes through the city.

[12] According to the United States Census Bureau, the city has a total area of 2.50 square miles (6.47 km2), all of it land.

24.0% of all households were made up of individuals, and 12.4% had someone living alone who was 65 years of age or older.

24.9% of all households were made up of individuals, and 12.1% had someone living alone who was 65 years of age or older.