Ranspach-le-Bas was formerly part of the German Empire. In the German Empire, the place was called Niederranspach.
The place is now called Ranspach-le-Bas and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Niederranspach | German Empire | Mülhausen | before the Versailles Treaty |
| Ranspach-le-Bas | France | Haut-Rhin | after the Versailles Treaty |
| Niederranspach | German Empire | Mülhausen | 1940 |
| Ranspach-le-Bas | France | Haut-Rhin | 1945 |
| Ranspach-le-Bas | France | Haut-Rhin | 1993 |