Horka an der Iser was formerly part of the German Empire. In the German Empire, the place was called Horky nad Jizerou.
The place is now called Horky nad Jizerou and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Horka an der Iser | Austro-Hungary | Jungbunzlau | before the Treaty of Saint-Germain |
| Horky nad Jizerou | Austro-Hungary | Jungbunzlau | before the Treaty of Saint-Germain |
| Horky nad Jizerou | Czechoslovakia | Mladá Boleslav | after the Treaty of Saint-Germain |
| Horka an der Iser | German Empire | Jungbunzlau | 1939 |
| Horky nad Jizerou | German Empire | Jungbunzlau | 1939 |
| Horky nad Jizerou | Czechoslovakia | Mladá Boleslav | 1945 |
| Horky nad Jizerou | Czechoslovakia | Střední Čechy | 1992 |