The population of the Republic of Ireland grew by nearly a third in 20 years, while the population of Northern Ireland grew by an eighth, according to a joint study carried out by statisticians.

It added that the 5.15 million people living in Ireland in 2022 accounted for 73% of the island’s population, while the 1.91 million people in Northern Ireland accounted for 27%.

The census in Northern Ireland took place on Sunday, March 21, 2021. The census in Ireland took place on Sunday, April 3, 2022, having been delayed due to the pandemic. Population of the island of ...

That growth has been uneven: the Republic’s population surged by 31 per cent, while Northern Ireland’s grew by a more modest 13 per cent. The Republic now stands at just over 5.1 million ...