The city of Spielberg, with a population of about 5,000 inhabitants, is located north of the Mur in the east of Aichfeld, between the cities of Zeltweg and Knittelfeld. The municipal area of Knittelfeld has grown together with a part of the township. From 1986 to 2009 Spielberg was a Marktgemeinde. On October 1, 2009 it became a “Stadtgemeinde”. Within the district you can find both municipal and countrified mintages.
The township is composed of 9 Katastralgemeinden. Pausendorf is the major Katastralgemeinde with 1500 inhabitants. The Katastralgemeinde Spielberg is only a small part of the township but gives the whole municipality its name.
The SPÖ has been the dominant position of the township since 1960, when the countrified township became a municipality. This was triggered when a number of industrial firms moved to the township, above all the Austria Antriebstechnik AG (ATB).