Chelchy Jakusy was formerly part of the German Empire. In the German Empire, the place was called Chelchi Jakusi.
The place is now called Chełchy-Jakusy and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Chelchy Jakusy | Russian Empire | Makov | 1914 |
| Chełchy-Jakusy | Poland | Maków | 1919 |
| Chelchi Jakusi | German Empire | Mackeim | 1939 |
| Chełchy-Jakusy | Poland | Maków Mazowiecki | 1945 |
| Chełchy-Jakusy | Poland | Ciechanów | 1992 |