Jazgarka was formerly part of the German Empire. In the German Empire, the place was called Jasgarka.
The place is now called Jazgarka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jazgarka | Russian Empire | Ostrolenka | 1914 |
| Jazgarka | Poland | Ostrołęka | 1919 |
| Jasgarka | German Empire | Scharfenwiese | 1939 |
| Jazgarka | Poland | Ostrołęka | 1945 |
| Jazgarka | Poland | Ostrołęka | 1992 |