Quick Facts
| County seat | La Grande |
|---|---|
| Region | Northeast Oregon |
| Population (2020 Census) | 25,900 |
| Land & water area | 2,037 sq mi |
| Population density | 12.7 people per sq mi |
| Established | 1864 |
| Formed from | Baker County |
| Name origin | Named for the town of Union, itself named for the Union during the Civil War. |
| Incorporated cities | 8 |
| Main electric utility | Oregon Trail Electric Cooperative |
| FIPS code | 41061 |
| Official county website | union-county.org |
About Union County
Union County is one of the 36 counties in the U.S. state of Oregon, and one of the 8 counties of eastern Oregon. As of the 2020 census, the population was 26,196. The county comprises the La Grande micropolitan statistical area and the county seat is La Grande.
Source: adapted from Wikipedia, available under CC BY-SA 4.0.
Cities in Union County
| City | Population (2020) | Incorporated |
|---|---|---|
| La Grande ★ | 13,026 | 1865 |
| Union | 2,152 | 1878 |
| Elgin | 1,717 | 1891 |
| Island City | 1,144 | 1904 |
| Cove | 620 | 1904 |
| North Powder | 504 | 1903 |
| Imbler | 245 | 1922 |
| Summerville | 119 | 1885 |
★ county seat. Cities that span more than one county are listed in each.