County Donegal is a county in Ireland. It is part of the Border Region and is in the province of Ulster. It is named after the town of Donegal in the south of the county. Donegal County Council is the local council for the county and Lifford serves as the county town. The population of the county was 161,137 according to the 2011 census. It has also been known as, after the historic territory of the same name.