Czarnków–Trzcianka County (Polish: powiat czarnkowsko-trzcianecki) is a county in Greater Poland Voivodeship, west-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat is the town of Czarnków, which lies 61 kilometres (38 mi) north-west of the regional capital Poznań. The county contains three other towns: Trzcianka, 18 km (11 mi) north of Czarnków, Krzyż Wielkopolski, 38 km (24 mi) west of Czarnków, and Wieleń, 27 km (17 mi) west of Czarnków.
The county covers an area of 1,808.19 square kilometres (698.1 sq mi). As of 2006 its total population is 86,134, out of which the population of Trzcianka is 16,756, that of Czarnków is 11,356, that of Krzyż Wielkopolski is 6,283, that of Wieleń is 5,940, and the rural population is 45,799.
The county is subdivided into eight gminas (one urban, three urban-rural and four rural). These are listed in the following table, in descending order of population.
