Medgyesegyháza is a town in Békés County, in the Southern Great Plain region of south-east Hungary. It covers an area of 64.32 km² and ha…Medgyesegyháza is a town in Békés County, in the Southern Great Plain region of south-east Hungary. It covers an area of 64.32 km² and has a population of 3558 people. The Jewish community in the city was established in the second half of the 19th century and most of them were engaged in the grain trade.