evidence: The other UK censuses showed higher rates of population growth than in Scotland. In England and Wales the population increased by 6.3% between 2011 and 2021. In Northern Ireland the population increased by 5.1% over the same period. [...] Scotland has a much lower population density than England and Wales where there were 395 residents per square kilometre in 2021. Northern Ireland had a population density of 140 residents per square kilometre in 2021. [...] The Northern Ireland Statistics and Research Agency is responsible for the census in Northern Ireland. Data and supporting information is available on the NISRA website.