Sączkowo was formerly part of the German Empire. In the German Empire, the place was called Sonnenhofen.
The place is now called Sączkowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sonczkowo | German Empire | Schmiegel | before the Versailles Treaty |
| Sączkowo | Poland | Kościan | after the Versailles Treaty |
| Sonnenhofen | German Empire | Kosten (Wartheland) | 1939 |
| Sączkowo | Poland | Kościan | 1945 |
| Sączkowo | Poland | Leszno | 1992 |