Rusko was formerly part of the German Empire. In the German Empire, the place was called Rußhagen.
The place is now called Rusko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rußhagen | German Empire | Schlawe i.Pom. | 1939 |
| Rusko | Under Polish administration | Sławno | 1945 |
| Rusko | Poland | Koszalin | 1992 |