Colchester County is a county in the Canadian province of Nova Scotia. With a population of 51,476 the county is the fourth largest in Nova Scotia. Colchester County is located in north central Nova Scotia. The majority of the county is governed by the Municipality of the County of Colchester, the county also is home to two independent incorporated towns, Stewiacke and Truro, two village commissions in Bible Hill and Tatamagouche, and the Millbrook 27 First Nations reserve.