Michael Fitzmaurice (Independent Ireland) and Claire Kerrane (Sinn Féin) are in strong positions to retain Dáil seats in Roscommon/Galway.
The third seat looks set to be taken by first time runner Martin Daly (Fianna Fáil).
Senators Aisling Dolan (Fine Gael) and Eugene Murphy (Independent) are behind but still have a chance of election.
An official tally is expected shortly.