Sędówko was formerly part of the German Empire. In the German Empire, the place was called Königstreu.
The place is now called Sędówko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Königstreu | German Empire | Mogilno | before the Versailles Treaty |
| Sędówko | Poland | Mogilno | after the Versailles Treaty |
| Königstreu | German Empire | Mogilno | 1939 |
| Sędówko | Poland | Mogilno | 1945 |
| Sędówko | Poland | Bydgoszcz | 1992 |