Ciężkowo was formerly part of the German Empire. In the German Empire, the place was called Zinsdorf.
The place is now called Ciężkowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Cienskowo | German Empire | Schubin | before the Versailles Treaty |
| Ciężkowo | Poland | Szubin | after the Versailles Treaty |
| Zinsdorf | German Empire | Altburgund | 1939 |
| Ciężkowo | Poland | Szubin | 1945 |
| Ciężkowo | Poland | Bydgoszcz | 1992 |