Leżajsk County is a unit of territorial administration and local government (powiat) in Subcarpathian Voivodeship, south-eastern Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Leżajsk, which lies 41 kilometres (25 mi) north-east of the regional capital Rzeszów. The only other town in the county is Nowa Sarzyna, lying 11 km (7 mi) north-west of Leżajsk.