Ranking of Union, OR Cities and Places By population in 2020
Updated on June 27, 2025.
Based on the US Census Vintage data estimates, in 2020, among all Union, OR cities and places, La Grande city had the highest population (13.01K), followed by Balance of Union County (6.66K), and Union city (2.15K).
The chart below shows the top 9 cities and places, and the table below shows the ranking of all Union cities and places.
You can see similar information for other Oregon counties. You can also see the ranking of all cities and places in Oregon.
Data Source: US Census Bureau (Vintage).
Ranking of Union, OR Cities and Places By population in 2020
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| Rank | City or Place | Population |
|---|---|---|
| 1 | La Grande city | 13006 |
| 2 | Balance of Union County | 6659 |
| 3 | Union city | 2151 |
| 4 | Elgin city | 1714 |
| 5 | Island City city | 1145 |
| 6 | Cove city | 625 |
| 7 | North Powder city | 502 |
| 8 | Imbler city | 246 |
| 9 | Summerville town | 120 |