 As of 2006 its total population is 84,786, out of which the population of Nakło nad Notecią is 19,409, that of Szubin is 9,326, that of Kcynia is 4,679, that of Mrocza is 4,203, and the rural population is 47,169.Anielin

Nakło County is bordered by Sępólno County to the north, Bydgoszcz County to the east, Żnin County to the south, Wągrowiec County to the southwest and Piła County to the west.The county is subdivided into five gminas (four urban-rural and one rural).