From the Wikipedia page 
Łuków County (Polish: powiat łukowski) is a unit of territorial administration and local government (powiat) in Lublin Voivodeship, eastern Poland. It was established on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest town is Łuków, which lies 76 kilometres (47 mi) north of the regional capital Lublin. The only other town in the county is Stoczek Łukowski, lying 30 km (19 mi) west of Łuków.
Łuków County is bordered by Siedlce County to the north, Biała Podlaska County to the east, Radzyń Podlaski County to the south-east, Lubartów County to the south, Ryki County to the south-west and Garwolin County to the west.