Northern Ireland had the largest proportion of children in mid-2012. The latest ONS Region and Country Profiles analysis takes a look at the regional characteristics of the UK, exploring aspects such as population, age, employment, crime and house prices. The profile of Northern Ireland shows it to have one of the youngest populations of the UK with a median age of 37.6 years. Northern Ireland contributed 2% of the UK’s economic output and the unemployment rate was 7.5%.