Koperno was formerly part of the German Empire. In the German Empire, the place was called Küppern.
The place is now called Koperno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Küppern | German Empire | Guben | 1939 |
| Koperno | Under Polish administration | Gubin | 1945 |
| Koperno | Poland | Zielona Góra | 1992 |