From the Wikipedia page 
Wysokie Mazowieckie County (Polish: powiat wysokomazowiecki) is a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, north-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 Wysokie Mazowieckie, which lies 49 kilometres (30 mi) south-west of the regional capital Białystok. The only other towns in the county are Ciechanowiec, lying 27 km (17 mi) south of Wysokie, Szepietowo, 6 km (4 mi) south of Wysokie, and as from 1 January 2011 Czyżew.
Wysokie Mazowieckie County is bordered by Białystok County and Bielsk County to the east, Siemiatycze County and Sokołów County to the south, and Ostrów Mazowiecka County and Zambrów County to the west.