BÃ¡cs-Kiskun; is a county located in southern Hungary. It was created as a result of World War II, merging the pre war BÃ¡cs-Bodrog and the southern parts of Pest-Pilis-Solt-Kiskun counties. With an area of 8,445 km2, BÃ¡cs-Kiskun is the largest county in the country. The terrain is mostly flat with slight emergences around Baja. The county seat and largest city of BÃ¡cs-Kiskun is KecskemÃ©t. The county is also part of the Danube-Kris-Mures-Tisa euroregion.