Gródkowo was formerly part of the German Empire. In the German Empire, the place was called Blockhausen.
The place is now called NN and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grodkowo | Russian Empire | Plock | 1914 |
| Grodkowko | Russian Empire | Plock | 1914 |
| Pozarzyn | Russian Empire | Plock | 1914 |
| Pozarzyn Parcele | Russian Empire | Plock | 1914 |
| Gródkowo | Poland | Płock | 1919 |
| Gródkówko | Poland | Płock | 1919 |
| Pozarzyn | Poland | Płock | 1919 |
| Pozarzyn-Parcele | Poland | Płock | 1919 |
| Blockhausen | German Empire | Schröttersburg | 1939 |
| Gródkowo | Poland | Płock | 1945 |
| Grodkówko | Poland | Płock | 1945 |
| Pozarzyn | Poland | Płock | 1945 |
| NN | Poland | Płock | 1945 |
| Gródkowo | Poland | Płock | 1992 |
| Gródkówko | Poland | Płock | 1992 |
| Pozarzyn | Poland | Płock | 1992 |
| NN | Poland | Płock | 1992 |