Zalas was formerly part of the German Empire. In the German Empire, the place was called Zalas.
The place is now called Zalas and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Zalas | Austro-Hungary | Wadowitz/Wadowice | before the Treaty of Saint-Germain |
| Zalas | Poland | Wadowice | after the Treaty of Saint-Germain |
| Zalas | German Empire | Bielitz | 1939 |
| Zalas | Poland | Wadowice | 1945 |
| Zalas | Poland | Bielsko | 1992 |