Jeninek was formerly part of the German Empire. In the German Empire, the place was called Alt Gennin.
The place is now called Jeninek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alt Gennin | German Empire | Landsberg (Warthe) | 1939 |
| Jeninek | Under Polish administration | Gorzów Wielkopolski | 1945 |
| Jeninek | Poland | Gorzów | 1992 |