 Before the First World War, great population growth set in, but this did not continue after the war.Whereas most of the Kusel district's villages saw their population levels fall after the Second World War, even after ethnic Germans driven out of Germany's former eastern territories had come to settle, in Nußbach, further population growth set in, fostered by the village's relative proximity to the regional hub, Kaiserslautern.The following table shows population development since Napoleonic times for Nußbach, with some figures broken down by religious denomination