The population of Ireland increased by 3.8% between 2011 and 2016. The largest increase at a regional level was in Dublin at 5.8% followed by the Mid-East region at 5.3%. The Border (0.6%) and Mid-West (1.2%) had the smallest percentage increases over this time period.
At county level, Fingal (8%), Meath (5.9%) and Kildare (5.8%) had the largest percentage increases between 2011 and 2016 while there were decreases in Donegal (-1.2%) and Mayo (-0.1%).
Four counties had percentage increases of less than 1% over the same time period: Sligo, Tipperary, Roscommon and Leitrim.
In 2016 28.3% of the population of Ireland lived in Dublin while 14.5% lived in the Mid-East. Thus just under 43% of all Irish people lived in the Dublin or the Mid-East regions in 2016.
The proportion of people living in Dublin and the Mid-East increased slightly between 2011 and 2016 while there was no change in the proportions living in the South-East or the South-West.
Between 2011 and 2016, the proportion of people living in the Border, Midland, West and Mid-West regions declined.
More than half of the population of the Border and West regions lived in rural areas in 2016 compared to just 1.8% of Dublin residents.
Over 87% of people living in Dublin were resident in towns of 100,000 or more while 30.2% of people in the South-West were in towns of this size. No other regions in Ireland had towns of 100,000 people or more.
25%
About a quarter of the population of Meath, Laois and Fingal was under 15 years of age
The regions with the highest proportion of young people aged 0-14 in 2016 were the Mid-East at 23.9% and the Midlands at 23.2%.
Dublin (19.3%) and the South-West (20.6%) were the regions with the lowest proportions of people aged 0-14.
At county level, about a quarter of the population was aged under 15 years in Meath, Laois and Fingal in 2016.
The lowest proportions of people aged 0-14 were in Cork City (14.3%), Dublin City (15%) and Galway City (16.8%).
The Border (15.2%) and West (15.1%) had the highest proportion of people aged 65 and over in 2016 while the Mid-East (11.2%) and Dublin (12.2%) had the lowest.
At county level, Mayo, Kerry and Leitrim had the highest proportions of people aged 65 and over while Fingal, Kildare and Meath had the smallest proportions.
The young age dependency ratio was highest in the Mid-East in 2016, when the number of people aged under 15 as a percentage of those aged 15-64 was 36.8%, followed by the Midland region at 36.3%.
The Border had the highest old age dependency ratio, with the number of people aged 65 and over as a percentage of those aged 15-64 at 24.3% followed by the West at 23.6%.
The lowest combined age dependency ratio was in Dublin, where the number of people aged under 15 or over 65 as a percentage of those aged 15-64 was 46.1%.
The combined age dependency ratio was more than 50% in every other region in 2016 with the highest in the Border region at 59.4%.
There were about 390,900 people aged 25 and over living alone in Ireland in 2016.
More than a quarter (26.7%) of those aged 65 and over lived alone. The proportion of people aged 65 and over living alone varied from 28.7% in the Border to 23.5% in the Mid-East.
At county level, nearly a third (32.7%) of those aged 65 and over lived alone in Leitrim compared to just 20.6% in Fingal.
Nationally the age group least likely to live alone were those aged 25-44, with just 6.8% of people in this age group living alone in 2016.
Four out of ten people living in Dublin in 2016 were in the professional worker or managerial & technical social classes, compared to three out of ten people living in the Border region.
In Dún Laoghaire-Rathdown, more than half (55.9%) of people were in the professional work or managerial & technical social classes, while Longford had the smallest proportion in this class at just 27.8%.
The skilled manual and semi-skilled social classes accounted for 28.7% of people living in the Border in 2016 compared to 20.1% of people living in Dublin.
At county level, Monaghan had the highest proportion of people in the skilled manual and semi-skilled classes at 32.2% compared to only 12.6% in Dún Laoghaire-Rathdown.