Shannon River Basin a measurement of . When added to the Shannon's estuary this gives a total river flow of , which makes it the longest river within the River Shannon basin (from source to mouth)— longer than the Shannon Pot source. Thus the Boyle-Shannon river can be regarded as having the longest natural river flow in Ireland. The River Shannon Basin touches more than half (17) of Ireland's counties:- Limerick, Clare, Tipperary, Offaly, Westmeath, Longford, Roscommon, Kerry, Galway, Leitrim, Cavan, Sligo, Mayo, Cork, Laois, Meath and Fermanagh. There are many towns situated in the Shannon Basin. Towns and Villages (with 2011 populations)
County Offaly 2011 general election Offaly was part of the Laois–Offaly constituency which elected 5 TDs to the Dáil. Between 1921 and 2011 this consisted of the full territory of both counties. For the 2011 general election some electoral divisions in South Offaly where part of Tipperary North. The Electoral (Amendment) (Dáil Constituencies) Act 2013 established a new constituency called Offaly for the 2016 general election. The constituency incorporates all of Offaly from the existing Laois–Offaly constituency, and twenty four electoral divisions from Tipperary North. This constituency elects 3 TDs to the Dáil. There are five main news outlets for the county