Zielenica was formerly part of the German Empire. In the German Empire, the place was called Grünwalde.
The place is now called Zielenica and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grünwalde | German Empire | Preußisch Eylau | 1939 |
| Zielenica | Under Polish administration | Górowo Iławeckie | 1945 |
| Zielenica | Poland | Olsztyn | 1992 |