Rapaty-Żachy was formerly part of the German Empire. In the German Empire, the place was called Rapaty Zachy.
The place is now called Rapaty-Żachy and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rapaty Zachy | Russian Empire | Prasnyš | 1914 |
| Rapaty-Żachy | Poland | Przasnysz | 1919 |
| Rapaty Zachy | German Empire | Praschnitz | 1939 |
| Rapaty-Żachy | Poland | Przasnysz | 1945 |
| Rapaty-Żachy | Poland | Ostrołęka | 1992 |