Augustów County is a unit of territorial administration and local government (powiat) in Podlaskie Voivodeship, north-eastern Poland, on the border with Belarus. It came into being on 1 January 1999 as a result of the Polish local government reforms passed in 1998. Its administrative seat and largest city is Augustów, which lies 83 km north of the regional capital Białystok. The only other town in the county is Lipsk, lying 32 km south-east of Augustów. The county covers an area of 1658.27 km2. As of 2019 its total population is 58,205.

Neighbouring counties

Augustów County is bordered by Sokółka County to the south-east, Mońki County to the south, Grajewo County and Ełk County to the west, Suwałki County to the north, and Sejny County to the north-east. It also borders Belarus to the east.

Administrative division

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