Baja is a city with county rights in Bács-Kiskun County, southern Hungary. It is the second largest city in the county, after the county seat at Kecskemét, and is home to some 35,000 people. Baja is the seat of the Baja municipality. The environs of Baja have been continuously inhabited since the end of the Iron Age, but there is evidence of human presence since prehistoric times. The settlement itself was most likely established in the 14th century.