County Cavan County Cavan County Cavan () is a county in Ireland. It is in the province of Ulster and is part of the Border Region. It is named after the town of Cavan and is based on the historic Gaelic territory of East Breffny ("Bréifne"). Cavan County Council is the local authority for the county, which has a population of 76,092 according to the 2016 census. Cavan borders six counties: Leitrim to the west, Fermanagh and Monaghan to the north, Meath to the south-east, Longford to the south-west and Westmeath to the south. Cavan shares a border with County Fermanagh in
County Offaly out across the county with the Bog of Allen extending into four other counties. The county consists of approximately 42,000 hectares of peatlands which is 21% of Offaly's total land area. Offaly contains approximately of forest and woodland area, which only amounts to 4.5% of the county's land area. This includes woodlands within the Slieve Blooms and the Lough Boora Parklands. Roughly 75% of Offaly's forested area is Conifer High Forest. The following are the historical baronies located in County Offaly: One of the earliest known settlements in County Offaly is at Boora bog which dates back to the Mesolithic