Jilow was formerly part of the German Empire. In the German Empire, the place was called Jilové u Držkova.
The place is now called Jilové u Držkova and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jilow | Austro-Hungary | Semil | before the Treaty of Saint-Germain |
| Jílové | Austro-Hungary | Semil | before the Treaty of Saint-Germain |
| Jílové u Držkova | Czechoslovakia | Semily | after the Treaty of Saint-Germain |
| Jilau | German Empire | Semil | 1939 |
| Jilové u Držkova | German Empire | Semil | 1939 |
| Jilové u Držkova | Czechoslovakia | Semily | 1945 |
| Jilové u Držkova | Czechoslovakia | Praha, Hlavní město | 1992 |