Zalesie was formerly part of the German Empire. In the German Empire, the place was called Salleschen.
The place is now called Zalesie and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Salleschen | German Empire | Neidenburg | 1939 |
| Zalesie | Under Polish administration | Nidzica | 1945 |
| Zalesie | Poland | Olsztyn | 1992 |