Jaromierz was formerly part of the German Empire. In the German Empire, the place was called Klausfelde.
The place is now called Jaromierz and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klausfelde | German Empire | Schlochau | before the Versailles Treaty |
| Klausfelde | German Empire | Schlochau | after the Versailles Treaty |
| Klausfelde | German Empire | Schlochau | 1939 |
| Jaromierz | Under Polish administration | Człuchów | 1945 |
| Jaromierz | Poland | Słupsk | 1992 |