Højrup was formerly part of the German Empire. In the German Empire, the place was called Hoirup II.
The place is now called Højrup and belongs to Denmark.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Hoirup II | German Empire | Hadersleben | before the Versailles Treaty |
| Højrup | Denmark | Tønder | after the Versailles Treaty |
| Højrup | Denmark | Sønderjylland | 1993 |