New Red C poll also finds rising levels of support for Sinn Féin and independents
Two in three people would back a united Ireland if a referendum were to be held tomorrow, according to a new Red C poll.
Some 65% of respondents said they would favour Irish reunification - an eight-point increase on a similar Red C poll in 2010.
Support was highest among Sinn Féin supporters (79%), Fianna Fáil supporters (71%) and working-class voters (69%).
Taoiseach Enda Kenny raised the prospect of a border poll earlier this month in the wake of the Brexit referendum.
Northern Ireland and Scotland both voted against leaving the EU, creating uncertainty about their respective futures in the UK.
Fianna Fáil most popular party
The Red C poll for Paddy Power also registered rising levels of support for Sinn Féin and independents.
Fianna Fáil, meanwhile, has managed to retain its narrow lead over Fine Gael.
Micheál Martin’s party is on 28% support - down one point since the previous poll a fortnight earlier - while Fine Gael has risen one point to 27%.
Sinn Féin is up two points to 15%, independents are up three to 10%, while support for the Independent Alliance remains unchanged at 5%.
Labour has fallen two points to 4% - equal to the AAA-PBP.
Micheál Martin is the most popular party leader in the country, with 55% satisfaction, trailed by Enda Kenny (42%), Gerry Adams (28%) and Brendan Howlin (24%).
The poll, conducted in early July, also found that confidence in the government has increased by 8% to 56% since May.