Some Dáil constituencies cross county boundaries, in order to ensure a reasonably consistent ratio of electors to TDs. The Electoral (Revision of Constituencies) Act 1935 defined the boundaries of the Sligo constituency as being:[1]
"The administrative County of Sligo except the portion thereof which is comprised in the County Constituency of Leitrim."
The boundaries of the Leitrim constituency were defined as:
"The administrative County of Leitrim and The District Electoral Divisions of: Ballintogher East, Ballynakill, Ballynashee, Cliffony North, Cliffony South, Drumcolumb, Killadoon, Kilmactranny, Rossinver East and Shancough in the administrative County of Sligo."
Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns. For details of the order in which seats were won at each election, see the detailed results of that election.