The Upper Silesian metropolitan area is a metropolitan area in southern Poland and northeast Czech Republic, centered on the cities of Katowice and Ostrava in Silesia. Located in the three administrative units (NUTS-2 class): mainly Silesian Voivodeship, a small western part of Lesser Poland Voivodeship and a small east part of Moravian-Silesian Region.
The area lies within the Upper Silesian Coal Basin. Silesian metropolitan area (5.3 million people) with nearby Kraków metropolitan area (1.3 million people) and Częstochowa metropolitan area (0.4 million people) create a great metropolitan area covering 7 million people.
Upper Silesian metropolitan area has a population of 5,294,000, with 4,311,000 (81.43%) in Poland (the Upper Silesian polycentric metropolitan area) and 983,000 (18.57%) in the Czech Republic (Ostrava Functional Urban Area). According to Polish Scientific Publishers (PWN) area is 5,400 km², with 4,500 km² (83.33%) in Poland and 900 km² (16.67%) in the Czech Republic.
The area consists of several Functional Urban Areas (FUA), each of which is defined as a core Morphological Urban Area (MUA) based on population density plus the surrounding labour pool, i.e. a metropolitan area. This area contains the following FUAs:
Historically, most of the area was characterized by heavy industry since the age of industrialisation in the late 19th and early 20th century. In addition to coal, Upper Silesia also contains a number of other minable resources (methane, cadmium, lead, silver and zinc). Resources of coal to a depth to 1000 meters – about 70 billion tons, the conditions for the extraction – good.