Mońki County (Polish: powiat moniecki) is a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, northeastern 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 Mońki, which lies 40 kilometres (25 mi) northwest of the regional capital Białystok. The county also contains the towns of Knyszyn, lying 13 km (8 mi) southeast of Mońki, and Goniądz, 11 km (7 mi) northwest of Mońki.
The county covers an area of 1,382.39 square kilometres (533.7 sq mi). As of 2019 its total population is 40,518, out of which the population of Mońki is 9,986, that of Knyszyn is 2,748, that of Goniądz is 1,814, and the rural population is 25,970.[1]
Mońki County existed also between 1954 - 1975, but it was deleted after reform.
The county is subdivided into seven gminas (three urban-rural and four rural). These are listed in the following table, in descending order of population.