Sułków was formerly part of the German Empire. In the German Empire, the place was called Sulkau.
The place is now called Sułków and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sulkau | German Empire | Guhrau | 1939 |
| Sułków | Under Polish administration | Góra | 1945 |
| Sułków | Poland | Leszno | 1992 |