The council was established in 1973 and originally had 20 councillors but following a review of local government boundaries in the early 1980s, the number of councillors was increased to 21. Omagh District Council consisted of three electoral areas: Omagh Town, Mid Tyrone and West Tyrone. In the last elections in 2011 members were elected from the following political parties: 10 Sinn Féin, 3 Social Democratic and Labour Party (SDLP), 3 Ulster Unionist Party (UUP), 3 Democratic Unionist Party (DUP) and 2 Independents. The election of Chairman and Vice Chairman of the Council took place annually in June.