Kózki was formerly part of the German Empire. In the German Empire, the place was called Kosken.
The place is now called Kózki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kosken | German Empire | Johannisburg | 1939 |
| Kózki | Under Polish administration | Pisz | 1945 |
| Kózki | Poland | Suwałki | 1992 |