Kłódka-Młyn was formerly part of the German Empire. In the German Empire, the place was called Klodtkenmühle.
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klodtken, Mühle | German Empire | Graudenz | before the Versailles Treaty |
| Kłódka-Młyn | Poland | Grudziądz | after the Versailles Treaty |
| Klodtkenmühle | German Empire | Graudenz | 1939 |
| Kłódka-Młyn | Poland | Grudziądz | 1945 |
| NN | Poland | Toruń | 1992 |