Zambrów County Powiat zambrowski
County
Flag Coat of arms
Location within the voivodeship
Coordinates (Zambrów): 52°59′N 22°15′E / 52.983°N 22.250°E / 52.983; 22.250
Country	Poland
Voivodeship	Podlaskie
Seat	Zambrów
Gminas	Total 5 (incl. 1 urban) Zambrów Gmina Kołaki Kościelne Gmina Rutki Gmina Szumowo Gmina Zambrów
Area
• Total	733.11 km2 (283.06 sq mi)
Population  (2019)
• Total	43,663
• Density	60/km2 (150/sq mi)
• Urban	22,098
• Rural	21,565
Car plates	BZA
Website	http://www.powiatzambrowski.com/

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]

Zambrów County is bordered by Łomża County to the north, Białystok County and Wysokie Mazowieckie County to the east, and Ostrów Mazowiecka County to the south-west.

The county is subdivided into five gminas (one urban and four rural). These are listed in the following table, in descending order of population.