Klein Bölkau was formerly part of the German Empire. In the German Empire, the place was called Bölkau.
The place is now called Bielkówko and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klein-Bölkau | German Empire | Danziger Höhe | before the Versailles Treaty |
| Klein Bölkau | Free City of Danzig | Danziger Höhe | after the Versailles Treaty |
| Klein Bölkau | German Empire | Danzig | 1939 |
| Bölkau | German Empire | Danzig | 1940 |
| Bielkówko | Poland | Pruszcz Gdański | 1945 |
| Bielkówko | Poland | Gdańsk | 1992 |