Pólko was formerly part of the German Empire. In the German Empire, the place was called Polken.
The place is now called Pólko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Polken | German Empire | Rosenberg i. Westpr. | before the Versailles Treaty |
| Polken | German Empire | Rosenberg i. Westpr. | after the Versailles Treaty |
| Polken | German Empire | Rosenberg i. Westpr. | 1939 |
| Polken | German Empire | Rosenberg i. Westpr. | 1939 |
| Pólko | Under Polish administration | Susz | 1945 |
| Pólko | Poland | Elbląg | 1992 |