Zajączkówko was formerly part of the German Empire. In the German Empire, the place was called Neu Sanskow.
The place is now called Zajączkówko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neu Sanskow | German Empire | Belgard (Persante) | 1939 |
| Zajączkówko | Under Polish administration | Białogard | 1945 |
| Zajączkówko | Poland | Koszalin | 1992 |