text: Economy Due to the emphasis on industrialization during the former Socialist regime and the county's richness in brown coal, Borsod-Abaúj-Zemplén has become one of the leading industrial regions of the country, "the Ruhr Area of Hungary". The most important centres of heavy industry were Miskolc, Ózd, Tiszaújváros and Kazincbarcika. With the fall of the Socialist regime the industry faced a crisis, and Borsod-Abaúj-Zemplén is among the counties that have the highest rate of unemployment and also the lowest rates of GDP per capita in Hungary.
  The county is the site of the Borsod Power Plant, one of the largest biomass power plants in Hungary.
  Politics
  County Assembly
  The Borsod–Abaúj–Zemplén County Council, elected at the 2019 local government elections, is made up of 29 counselors, with the following party composition:
  Presidents of the County Assembly
  Members of the National Assembly
  The following members elected of the National Assembly during the 2022 parliamentary election:
  Municipalities
  Borsod–Abaúj–Zemplén County has 1 urban county, 27 towns, 8 large villages and 322 villages.
  Borsod–Abaúj–Zemplén is the county of extremes: it is the home of the country's fourth largest city and second largest agglomeration, where one fourth of the county' population resides, on the other hand, the county is full of hamlets with population under 200. Borsod-Abaúj-Zemplén has 28 cities/towns (as of 2019) and over 300 villages. With a total of 358 cities, towns and villages this county has the most municipalities in Hungary. Approximately half of the population lives in cities/towns.
  City with county rights
  (ordered by population, as of 2011 census)
  Miskolc (167,754) – county seat