"Chojnice County on a map of the counties of Pomeranian Voivodeship"

Chojnice County is bordered by Bytów County and Kościerzyna County to the north, Starogard County and Tuchola County to the east, Sępólno County to the south, and Człuchów County to the west.Between 1172 and 1920 the county, with varying boundaries, was part of Prussia.