Kumielsk was formerly part of the German Empire. In the German Empire, the place was called Morgen.
The place is now called Kumielsk and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kumilsko | German Empire | Johannisburg | 1938 |
| Morgen | German Empire | Johannisburg | 1939 |
| Kumielsk | Under Polish administration | Pisz | 1945 |
| Kumielsk | Poland | Suwałki | 1992 |