Opinion polling on a United Ireland

This page lists opinion polling for a United Ireland also known as a New Ireland.

In Northern Ireland
The Good Friday Agreement states that "the Secretary of State" should call a referendum "if at any time it appears likely to him that a majority of those voting would express a wish that Northern Ireland should cease to be part of the United Kingdom and form part of a united Ireland."

2016 poll
In 2016 an Ipsos MORI poll asked "If there was a referendum on the border tomorrow would you:" and the answers for different regions of Northern Ireland were as follows,

The same poll recorded answers from people in different age groups as follows, Answers from people of different religious backgrounds were as follows,

2014 poll
An opinion poll of 1,089 people conducted by LucidTalk in 2014 around the time of the Scottish referendum posed several questions. On the question of whether or not there should be a border poll, 47% said "yes", 37% "no" and 16% "don't know". On the question, "If a referendum on Irish Unity was called under the Good Friday Agreement would you vote: Yes for unity as soon as possible, Yes for unity in 20 years, or No for Northern Ireland to remain as it is", the results were as follows.

In the United Kingdom
A 2019 poll by Ipsos Mori and King's College London asked people in Great Britain (England, Scotland, and Wales): "If there were to be a referendum in Northern Ireland on its future, would you personally prefer Northern Ireland to choose to stay in the UK or leave the UK and join the Republic of Ireland?" The responses revealed that 36% wanted Northern Ireland to stay in the UK, 19% wanted it to join the Republic, 36% had no preference, and 9% were undecided. It further revealed that support for Northern Ireland remaining in the UK was highest among those who intended to vote Conservative (49%) compared to 35% for Labour voters and 31% for Liberal Democrat voters.

A 2023 state of the union poll asking if Ireland should unite showed that respondents from Northern Ireland, Scotland, Wales and England all had net positive views on the unification. On a scale between −10 to definitely remain in the UK to +10 to definitely unite Ireland; the people of Scotland had a net score of +1.9, England at +0.9, Wales at +0.6, and those in Northern Ireland at +0.6 also.