Sinn Fein is still the most popular party in the country, but has lost some support.

A new poll from the Sunday Times shows Mary Lou McDonald's party is on 31 per cent but is down 3 points.

Fianna Fail has dropped one to 24, while Fine Gael has gained four to 23 per cent support.

The Green party's unchanged on 5, while Labour is also on 5, but is up one.

The Social Democrats are on 2, unchanged, while Solidarity People Before Profit are down 1 to 1 and Independents are up 1 to 9.