The 1970s saw the construction of the Katowice Steelworks, which is nowadays the biggest steel producing plant in Poland, after privatization owned by ArcelorMittal. In the 1970s the town expanded territorially and economically. In 1975 and 1977 the neighboring localities of Strzemieszyce Małe, Strzemieszyce Wielkie, Ząbkowice and others became suburbanized. The population of Dąbrowa Górnicza reached its peak in 1982 with 152,373 inhabitants. In the 1990s all local coal mines were closed, because of lack of coal. But the oldest part of the town Reden still exists.