In 2025, the population of the Republic of Ireland was approximately 5.46 million, with approximately 1.57 million people living in County Dublin, the region with the highest population.

The total population in Ireland was estimated at 5.4 million people in 2025, according to the latest census figures and projections from Trading Economics. This dataset provides the latest reported value for - Ireland Population - plus previous releases, historical high and low, short-term forecast and long-term prediction, economic calendar, survey consensus and news.

In 2022, the average age of mothers in the Republic of Ireland at maternity was 33.2 years, compared with 28.8 in 1977.

In 2025, there were 435,500 people aged between 40 and 44 in the Republic of Ireland, the most common age group among those provided in this year.

Graph and download economic data for Population, Total for Ireland (POPTOTIEA647NWDB) from 1960 to 2024 about Ireland and population.

Ireland IE: Population: Growth data was reported at 1.218 % in 2017. This records an increase from the previous number of 1.129 % for 2016. Ireland IE: Population: Growth data is updated yearly, averaging 0.813 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 2.891 % in 2007 and a record low of -0.428 % in 1988. Ireland IE: Population: Growth data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Ireland – Table IE.World Bank.WDI: Population and Urbanization Statistics. Annual population growth rate for year t is the exponential rate of growth of midyear population from year t-1 to t, expressed as a percentage . Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.; ; Derived from total population. Population source: (1) United Nations Population Division. World Population Prospects: 2017 Revision, (2) Census reports and other statistical publications from national statistical offices, (3) Eurostat: Demographic Statistics, (4) United Nations Statistical Division. Population and Vital Statistics Reprot (various years), (5) U.S. Census Bureau: International Database, and (6) Secretariat of the Pacific Community: Statistics and Demography Programme.; Weighted average;

Ireland IE: Population: Female: Ages 70-74: % of Female Population data was reported at 3.674 % in 2017. This records an increase from the previous number of 3.507 % for 2016. Ireland IE: Population: Female: Ages 70-74: % of Female Population data is updated yearly, averaging 3.178 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 3.674 % in 2017 and a record low of 2.705 % in 2003. Ireland IE: Population: Female: Ages 70-74: % of Female Population data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Ireland – Table IE.World Bank: Population and Urbanization Statistics. Female population between the ages 70 to 74 as a percentage of the total female population.; ; World Bank staff estimates based on age/sex distributions of United Nations Population Division's World Population Prospects: 2017 Revision.; ;

Ireland - Foreign-born population was 1211883.00 in December of 2024, according to the EUROSTAT. Trading Economics provides the current actual value, an historical data chart and related indicators for Ireland - Foreign-born population - last updated from the EUROSTAT on December of 2025. Historically, Ireland - Foreign-born population reached a record high of 1211883.00 in December of 2024 and a record low of 730542.00 in December of 2010.

Key information about Ireland population

• The Ireland population reached 5.5 million people in Apr 2025, compared with the previously reported figure of 5.4 million people in Apr 2024
• The data reached an all-time high of 5.5 million people in Apr 2025 and a record low of 2.8 million people in Apr 1961

*This indicator will be no longer available from March 2026, 4th onwards. CEIC has a plan to remove the non-standard frequency indicator after the standard frequency indicator has been added and be available on this table. Central Statistics Office provides year-end Population. Population is in annual frequency, ending in April of each year.


Further information about Ireland population data

• In the latest reports, Ireland Unemployment Rate dropped to 5.0 % in Oct 2025
• Monthly earnings of the Ireland population was 4,692.0 USD in Sep 2025
• Ireland Labour Force Participation Rate increased to 66.5 % in Sep 2025

Population, female (% of total population) in Ireland was reported at 50.5 % in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Ireland - Population, female (% of total) - actual values, historical data, forecasts and projections were sourced from the World Bank on November of 2025.

Graph and download economic data for Population Growth for Ireland (SPPOPGROWIRL) from 1961 to 2024 about Ireland, population, and rate.

Ireland IE: Population Density: People per Square Km data was reported at 69.874 Person/sq km in 2017. This records an increase from the previous number of 69.028 Person/sq km for 2016. Ireland IE: Population Density: People per Square Km data is updated yearly, averaging 51.358 Person/sq km from Dec 1961 (Median) to 2017, with 57 observations. The data reached an all-time high of 69.874 Person/sq km in 2017 and a record low of 40.999 Person/sq km in 1961. Ireland IE: Population Density: People per Square Km data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Ireland – Table IE.World Bank: Population and Urbanization Statistics. Population density is midyear population divided by land area in square kilometers. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship--except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin. Land area is a country's total area, excluding area under inland water bodies, national claims to continental shelf, and exclusive economic zones. In most cases the definition of inland water bodies includes major rivers and lakes.; ; Food and Agriculture Organization and World Bank population estimates.; Weighted Average;

Ireland: Population density, people per square km: The latest value from 2021 is 73 people per square km, an increase from 72 people per square km in 2020. In comparison, the world average is 456 people per square km, based on data from 196 countries. Historically, the average for Ireland from 1961 to 2021 is 54 people per square km. The minimum value, 41 people per square km, was reached in 1961 while the maximum of 73 people per square km was recorded in 2021.

In 2025, the population of the Republic of Ireland was approximately **** million, compared with **** million in 2024.

Ireland IE: Population: Total data was reported at 4,813,608.000 Person in 2017. This records an increase from the previous number of 4,755,335.000 Person for 2016. Ireland IE: Population: Total data is updated yearly, averaging 3,536,158.500 Person from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 4,813,608.000 Person in 2017 and a record low of 2,824,400.000 Person in 1961. Ireland IE: Population: Total data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Ireland – Table IE.World Bank: Population and Urbanization Statistics. Total population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship. The values shown are midyear estimates.; ; (1) United Nations Population Division. World Population Prospects: 2017 Revision. (2) Census reports and other statistical publications from national statistical offices, (3) Eurostat: Demographic Statistics, (4) United Nations Statistical Division. Population and Vital Statistics Reprot (various years), (5) U.S. Census Bureau: International Database, and (6) Secretariat of the Pacific Community: Statistics and Demography Programme.; Sum; Relevance to gender indicator: disaggregating the population composition by gender will help a country in projecting its demand for social services on a gender basis.

Historical dataset showing total population for Ireland by year from 1950 to 2025.

About this dataset

Context

This list ranks the 1 cities in the St. Louis city, MO by Irish population, as estimated by the United States Census Bureau. It also highlights population changes in each city over the past five years.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

• 2019-2023 American Community Survey 5-Year Estimates
• 2014-2018 American Community Survey 5-Year Estimates
• 2009-2013 American Community Survey 5-Year Estimates

Variables / Data Columns

• Rank by Irish Population: This column displays the rank of city in the St. Louis city, MO by their Irish population, using the most recent ACS data available.
• City: The City for which the rank is shown in the previous column.
• Irish Population: The Irish population of the city is shown in this column.
• % of Total City Population: This shows what percentage of the total city population identifies as Irish. Please note that the sum of all percentages may not equal one due to rounding of values.
• % of Total St. Louis city Irish Population: This tells us how much of the entire St. Louis city, MO Irish population lives in that city. Please note that the sum of all percentages may not equal one due to rounding of values.
• 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Actual value and historical data chart for Ireland Population Growth Annual Percent

Ireland: Population growth, percent: The latest value from 2023 is 2.6 percent, an increase from 1.85 percent in 2022. In comparison, the world average is 1.15 percent, based on data from 196 countries. Historically, the average for Ireland from 1961 to 2023 is 0.99 percent. The minimum value, -0.43 percent, was reached in 1988 while the maximum of 2.89 percent was recorded in 2007.

As of 2022, there were approximately **** million people in the Republic of Ireland who identified as being White Irish, with a further ******* who had any other white background. Asian or Asian Irish was the third-largest ethnic group in this year, at over ******.