text: Lakes of various sizes have evolved in sandy areas such as the basin of the Sóstó (Salty lake) of Nyíregyháza, whose alkaline, hydrogen-carbonated waters have medicinal qualities. Many water reservoirs have been built according to local demand. Thermal waters of 55–65 °C can be brought to the surface from wells as shallow as 1,000 metres. The most important thermal water reserves are in Nyíregyháza, Kisvárda, Mátészalka, and Tiszavasvári. The county's geothermal energy still awaits exploitation.
  The county has relatively few mineral reserves. Almost all of the large energy source transport systems cross the county.
  Demographics
  In 2015, it had a population of 562,357 and the population density was 92/km².
  Ethnicity
  Besides the Hungarian majority, the main minority populations in the county are Romani (about 44,000), German (about 2,000), and Ukrainian (about 1,000).
  Total population (2011 census): 559,272
  Ethnic groups (2011 census):
  Hungarians: 476,256 (90.55%)
  Romani: 44,133 (8.40%)
  Others and indefinable: 5,569 (1.06%)
  About 66,000 people in Szabolcs–Szatmár–Bereg County did not declare their ethnicity during the 2011 census.
  Religion
  Religious adherence in the county according to 2011 census:
  Reformed – 193,697;
  Catholic – 182,097 (Roman Catholic – 108,666; Greek Catholic – 73,419);
  Evangelical – 11,030;
  Orthodox – 389;
  other religions – 10,367;
  Non-religious – 44,173;
  Atheism – 2,468;
  Undeclared – 115,051.
  Regional structure
  Economy
  The county borders three countries, and it is the only Hungarian county bordering Ukraine. The railway border crossing toward Ukraine is well developed; its high capacity is able to meet the requirements of transit and bilateral trade. Following the reconstruction of the road border crossing, the county is also able to cope with increased road transportation.