Estimates published by the Central Statistics Office this morning suggest that the population of the Greater Dublin Area (GDA) will reach two million by 2021.
The figures are based on a regional breakdown of previously published national population projections and assume that current demographic trends will continue. The GDA covers Dublin, Meath, Kildare and Wicklow.
The CSO said all regions would experience population growth in the period to 2021, with the Mid-East and West showing the biggest increases at 51% and 35% respectively. The report said these regions would grow due to international migration and migration from the other six regions.
But the CSO said Dublin would lose out to other regions because of internal migration, with 120,000 more people leaving the region than entering it over the period.
The population of the State is projected to grow to just over five million by 2021.