Körös (river) in the context of Jász-Nagykun-Szolnok

Jász–Nagykun–Szolnok (Hungarian: Jász-Nagykun-Szolnok vármegye, pronounced [ˈjaːs ˈnɒckun ˈsolnok]) is an administrative county (comitatus or vármegye) in Hungary. It lies in central Hungary and shares borders with the Hungarian counties Pest, Heves, Borsod–Abaúj–Zemplén, Hajdú–Bihar, Békés, Csongrád, and Bács–Kiskun. The rivers Tisza and Körös flow through the county. The capital of Jász–Nagykun–Szolnok county is Szolnok. Its area is 5582 km. The county is named after the Ossetians (Jasz) and Cumans (Kun) who settled there, along with Szolnok. The county was part of the Danube–Criș–Mureș–Tisa Euroregion between 1997 and 2004.