The party is set to win seats across the country, but will fall well short of expectations.
Mary Lou McDonald said she's disappointed with the party's result and it's time to reflect on it ahead of a potential general election this year. With approaching 300 seats filled in the local elections her party has less than 12 per cent of the vote. By contrast Fine Gael and Fianna Fail will likely lose seats in this election but are polling in the early 20s.
Sinn Féin is also under pressure in the European elections where tallies in Midlands North West show there's a risk the party will lose its seat in that constituency. While Lynn Boylan will be involved in a fight in Dublin to win one for the party.
Sinn Féin's Housing Spokesman Eoin O'Broin said the party failed to get its voters out and will need to reflect on reasons why.