Sadług was formerly part of the German Empire. In the German Empire, the place was called Sadług.
The place is now called Sadług and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sadlug | Russian Empire | Nešava | 1914 |
| Sadług | Poland | Nieszawa | 1921 |
| Sadług | German Empire | Hermannsbad | 1939 |
| Sadług-Kolonia | Poland | Radziejów | 1945 |
| Sadług-Parcele | Poland | Radziejów | 1945 |
| Sadług-Folwark | Poland | Radziejów | 1945 |
| Sadług | Poland | Włocławek | 1992 |