 As of 2006 its total population is 64,087, out of which the population of Sianów is 6,543, that of Bobolice is 4,446, that of Polanów is 2,967, and the rural population is 50,131.Apart from the city of Koszalin, Koszalin County is also bordered by Sławno County, Słupsk County and Bytów County to the east, Szczecinek County and Białogard County to the south, and Kołobrzeg County to the west.It also borders the Baltic Sea to the north.