Population of Ireland

Recent data indicates an estimated 2026 population for Ireland of 5,566,960. This estimate is based on the latest official 2024 data of 5,395,790 and an annual growth rate of 1.57%. The country currently ranks 120 of 215 worldwide and maintains a population density of 80.8 people per km² (209 per sq mi). Approximately 64.3% of the population resides in urban centers, reflecting a steady trend toward urbanization amidst one of the fastest growth rates in Europe.

The demographic history of Ireland is uniquely defined by the Great Famine of 1845 to 1852, a catastrophic period that led to a massive population collapse through both mortality and institutionalized emigration. Prior to the famine, the population of the island was estimated at over 8 million people; however, the subsequent decades saw a continuous decline as millions of Irish citizens moved to the United States, United Kingdom, and Australia. This long-term trend of emigration persisted well into the 20th century, making Ireland one of the few countries to have a smaller population in the modern era than it did 150 years ago. A dramatic reversal began in the late 1990s during the "Celtic Tiger" economic boom. Improved economic conditions transformed Ireland from a country of emigrants to a destination for immigrants, drawing workers from across the European Union and beyond. While the 2008 financial crisis temporarily slowed this growth, the population has since resumed a robust upward trajectory. The current era is characterized by a significant recovery, with the population of the Republic of Ireland reaching levels not seen since the mid-19th century.

Ireland currently maintains one of the strongest annual population growth rates in Europe at 1.57%. This expansion is driven by a combination of natural increase and high net migration levels. While many European neighbors are facing demographic stagnation, Ireland has benefited from a relatively young population and its status as a major European economic hub, which continues to attract international talent. Current estimates suggest that if these trends continue, the population will continue to expand steadily through the mid-21st century. Despite the overall growth, the fertility rate has followed a downward trend common in developed nations, currently standing at 1.47 births per woman. This is below the replacement level of 2.1, indicating that future population stability will increasingly rely on migration rather than natural births. Projections from the Central Statistics Office suggest that the population could exceed 6 million by the 2040s, though this depends heavily on economic stability and housing capacity in major urban areas like Dublin.

The estimated 2026 population density for Ireland is 80.8 people per km² (209 per sq mi), ranking it 126 of 215 globally and 31 of 47 within Europe.

With 64.3% of people living in urban areas, Ireland ranks 107 of 215 globally, reflecting a concentration of residents in the Greater Dublin Area and other regional hubs like Cork, Limerick, and Galway.

In the context of Northern Europe, Ireland ranks 6 of 12 countries by population, positioned behind its only land-border neighbor, the United Kingdom. On a broader regional level, it ranks 26 of 47 in Europe. While its total population is smaller than regional giants, its growth rate of 1.57% significantly outpaces the European average and many of its Nordic neighbors. Globally, Ireland holds the 120th position for total population and 126th for density, reflecting its status as a mid-sized nation with a relatively low density compared to the highly urbanized clusters of Central Europe.