Wanacja was formerly part of the German Empire. In the German Empire, the place was called Wanacja.
The place is now called Wanacja and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wanacja | Russian Empire | Ostrolenka | 1914 |
| Wanacja | Poland | Kolno | 1919 |
| Wanacja | German Empire | Scharfenwiese | 1939 |
| Wanacja | Poland | Kolno | 1945 |
| Wanacja | Poland | Łomża | 1992 |