Zakarpattia Oblast has a total area of 12,800 km² and is in the Carpathian Mountains region of western Ukraine. It is the only Ukrainian oblast to have boundaries with four countries: Poland, Slovakia, Hungary and Romania. On the West it borders the Prešov and Košice Regions of Slovakia and Borsod-Abaúj-Zemplén and Szabolcs-Szatmár-Bereg Counties of Hungary, on the South—the Satu Mare and Maramureş Counties of Romania, on the East and Northeast—Ivano-Frankivsk Oblast, and on the North—Lviv Oblast and the Subcarpathian Voivodeship of Poland.