Zambrów County (Polish: powiat zambrowski) 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 only town is Zambrów, which lies 64 kilometres (40 mi) west of the regional capital Białystok.
The county covers an area of 733.11 square kilometres (283.1 sq mi). As of 2019 its total population is 43,663, out of which the population of Zambrów is 22,098 and the rural population is 21,565.[1]