What is political centralization index in Ireland?

Political centralization index in Ireland was 0.039 in 2025, according to Our World in Data.

What is the highest political centralization index recorded in Ireland?

The highest recorded value was 0.251 in 1919.

What is the lowest political centralization index recorded in Ireland?

The lowest recorded value was 0.038 in 2022.

How does Ireland rank for political centralization index?

Ireland ranks 162nd out of 176 countries with data for 2025.

Is political centralization index rising or falling in Ireland?

Over the last ten years it is down 20.4%. The long-run trend across the full record is falling.

Where does this Ireland data come from?

The figures come from Our World in Data, published as part of Political centralization index. Statizoid updates them automatically from the source API.

Political centralization index in Ireland

Name: Political centralization index in Ireland
Creator: Our World in Data
License: CC BY 4.0 (Our World in Data)

Ireland: Political centralization index was 0.039 in 2025. ▼ Falling

Latest (2025)

0.039

Change on year

unchanged

World rank

162nd

of 176 countries

All-time high

0.251

in 1919

All-time low

0.038

in 2022

Years of data

237

1789–2025

Political centralization index in Ireland, 1789–2025

Source: Our World in Data.

Analysis

Ireland recorded 0.039 for political centralization index in 2025.

Compared with earlier readings it is down 20.4% over ten years.

Over the whole period, political centralization index in Ireland peaked at 0.251 in 1919 and was at its lowest, 0.038, in 2022.

That places Ireland 162nd out of 176 countries with data for 2025, putting it in the bottom quarter.

The long-run direction has been consistently falling across the 237 years of available data.

Political centralization index in Ireland, year by year

Annual values for Political centralization index in Ireland, 1789 to 2025.
Year	Value	Change
1789	0.163	—
1790	0.179	+9.8%
1791	0.157	-12.3%
1792	0.157	+0.0%
1793	0.157	+0.0%
1794	0.157	+0.0%
1795	0.157	+0.0%
1796	0.181	+15.3%
1797	0.16	-11.6%
1798	0.16	+0.0%
1799	0.16	+0.0%
1800	0.16	+0.0%
1801	0.18	+12.5%
1802	0.18	+0.0%
1803	0.155	-13.9%
1804	0.155	+0.0%
1805	0.155	+0.0%
1806	0.178	+14.8%
1807	0.178	+0.0%
1808	0.16	-10.1%
1809	0.16	+0.0%
1810	0.179	+11.9%
1811	0.155	-13.4%
1812	0.179	+15.5%
1813	0.16	-10.6%
1814	0.16	+0.0%
1815	0.16	+0.0%
1816	0.16	+0.0%
1817	0.16	+0.0%
1818	0.178	+11.2%
1819	0.156	-12.4%
1820	0.177	+13.5%
1821	0.159	-10.2%
1822	0.159	+0.0%
1823	0.159	+0.0%
1824	0.159	+0.0%
1825	0.159	+0.0%
1826	0.174	+9.4%
1827	0.157	-9.8%
1828	0.157	+0.0%
1829	0.157	+0.0%
1830	0.178	+13.4%
1831	0.178	+0.0%
1832	0.178	+0.0%
1833	0.125	-29.8%
1834	0.125	+0.0%
1835	0.142	+13.6%
1836	0.125	-12.0%
1837	0.144	+15.2%
1838	0.128	-11.1%
1839	0.128	+0.0%
1840	0.128	+0.0%
1841	0.141	+10.2%
1842	0.125	-11.3%
1843	0.125	+0.0%
1844	0.125	+0.0%
1845	0.125	+0.0%
1846	0.125	+0.0%
1847	0.147	+17.6%
1848	0.127	-13.6%
1849	0.127	+0.0%
1850	0.127	+0.0%
1851	0.127	+0.0%
1852	0.144	+13.4%
1853	0.125	-13.2%
1854	0.125	+0.0%
1855	0.125	+0.0%
1856	0.125	+0.0%
1857	0.148	+18.4%
1858	0.124	-16.2%
1859	0.146	+17.7%
1860	0.127	-13.0%
1861	0.127	+0.0%
1862	0.127	+0.0%
1863	0.127	+0.0%
1864	0.127	+0.0%
1865	0.144	+13.4%
1866	0.124	-13.9%
1867	0.124	+0.0%
1868	0.148	+19.4%
1869	0.127	-14.2%
1870	0.127	+0.0%
1871	0.127	+0.0%
1872	0.127	+0.0%
1873	0.127	+0.0%
1874	0.143	+12.6%
1875	0.123	-14.0%
1876	0.123	+0.0%
1877	0.123	+0.0%
1878	0.123	+0.0%
1879	0.123	+0.0%
1880	0.143	+16.3%
1881	0.126	-11.9%
1882	0.126	+0.0%
1883	0.126	+0.0%
1884	0.126	+0.0%
1885	0.143	+13.5%
1886	0.143	+0.0%
1887	0.125	-12.6%
1888	0.125	+0.0%
1889	0.125	+0.0%
1890	0.125	+0.0%
1891	0.125	+0.0%
1892	0.146	+16.8%
1893	0.127	-13.0%
1894	0.127	+0.0%
1895	0.141	+11.0%
1896	0.125	-11.3%
1897	0.125	+0.0%
1898	0.125	+0.0%
1899	0.125	+0.0%
1900	0.137	+9.6%
1901	0.137	+0.0%
1902	0.137	+0.0%
1903	0.137	+0.0%
1904	0.137	+0.0%
1905	0.137	+0.0%
1906	0.137	+0.0%
1907	0.137	+0.0%
1908	0.137	+0.0%
1909	0.137	+0.0%
1910	0.137	+0.0%
1911	0.137	+0.0%
1912	0.137	+0.0%
1913	0.137	+0.0%
1914	0.139	+1.5%
1915	0.139	+0.0%
1916	0.139	+0.0%
1917	0.139	+0.0%
1918	0.139	+0.0%
1919	0.251	+80.6%
1920	0.169	-32.7%
1921	0.168	-0.6%
1922	0.119	-29.2%
1923	0.084	-29.4%
1924	0.084	+0.0%
1925	0.084	+0.0%
1926	0.084	+0.0%
1927	0.084	+0.0%
1928	0.084	+0.0%
1929	0.071	-15.5%
1930	0.071	+0.0%
1931	0.071	+0.0%
1932	0.071	+0.0%
1933	0.071	+0.0%
1934	0.071	+0.0%
1935	0.071	+0.0%
1936	0.071	+0.0%
1937	0.071	+0.0%
1938	0.071	+0.0%
1939	0.071	+0.0%
1940	0.071	+0.0%
1941	0.071	+0.0%
1942	0.071	+0.0%
1943	0.071	+0.0%
1944	0.071	+0.0%
1945	0.071	+0.0%
1946	0.071	+0.0%
1947	0.071	+0.0%
1948	0.088	+23.9%
1949	0.07	-20.5%
1950	0.051	-27.1%
1951	0.063	+23.5%
1952	0.051	-19.0%
1953	0.051	+0.0%
1954	0.051	+0.0%
1955	0.051	+0.0%
1956	0.051	+0.0%
1957	0.051	+0.0%
1958	0.051	+0.0%
1959	0.051	+0.0%
1960	0.051	+0.0%
1961	0.051	+0.0%
1962	0.051	+0.0%
1963	0.051	+0.0%
1964	0.051	+0.0%
1965	0.05	-2.0%
1966	0.05	+0.0%
1967	0.05	+0.0%
1968	0.05	+0.0%
1969	0.05	+0.0%
1970	0.05	+0.0%
1971	0.05	+0.0%
1972	0.05	+0.0%
1973	0.05	+0.0%
1974	0.042	-16.0%
1975	0.042	+0.0%
1976	0.042	+0.0%
1977	0.042	+0.0%
1978	0.042	+0.0%
1979	0.042	+0.0%
1980	0.042	+0.0%
1981	0.052	+23.8%
1982	0.067	+28.8%
1983	0.061	-9.0%
1984	0.058	-4.9%
1985	0.058	+0.0%
1986	0.054	-6.9%
1987	0.054	+0.0%
1988	0.054	+0.0%
1989	0.054	+0.0%
1990	0.061	+13.0%
1991	0.052	-14.8%
1992	0.052	+0.0%
1993	0.052	+0.0%
1994	0.052	+0.0%
1995	0.051	-1.9%
1996	0.051	+0.0%
1997	0.048	-5.9%
1998	0.048	+0.0%
1999	0.048	+0.0%
2000	0.048	+0.0%
2001	0.048	+0.0%
2002	0.048	+0.0%
2003	0.048	+0.0%
2004	0.048	+0.0%
2005	0.048	+0.0%
2006	0.048	+0.0%
2007	0.048	+0.0%
2008	0.048	+0.0%
2009	0.048	+0.0%
2010	0.048	+0.0%
2011	0.048	+0.0%
2012	0.05	+4.2%
2013	0.049	-2.0%
2014	0.049	+0.0%
2015	0.049	+0.0%
2016	0.049	+0.0%
2017	0.045	-8.2%
2018	0.044	-2.2%
2019	0.044	+0.0%
2020	0.048	+9.1%
2021	0.039	-18.8%
2022	0.038	-2.6%
2023	0.038	+0.0%
2024	0.039	+2.6%
2025	0.039	+0.0%

Ireland compared with similar countries

Ireland's 0.039 is below the median for high income countries, which is 0.09, 43% of the median. (55 countries reporting)
Ireland's 0.039 is below the median for Europe & Central Asia, which is 0.1585, 25% of the median. (48 countries reporting)

Averages by decade

Decade	Average	Lowest	Highest	Years
1780s	0.163	0.163	0.163	1
1790s	0.1625	0.157	0.181	10
1800s	0.1661	0.155	0.18	10
1810s	0.1647	0.155	0.179	10
1820s	0.1617	0.157	0.177	10
1830s	0.1451	0.125	0.178	10
1840s	0.1295	0.125	0.147	10
1850s	0.1316	0.124	0.148	10
1860s	0.1302	0.124	0.148	10
1870s	0.1266	0.123	0.143	10
1880s	0.1308	0.125	0.143	10
1890s	0.1291	0.125	0.146	10
1900s	0.137	0.137	0.137	10
1910s	0.1494	0.137	0.251	10
1920s	0.1031	0.071	0.169	10
1930s	0.071	0.071	0.071	10
1940s	0.0726	0.07	0.088	10
1950s	0.0522	0.051	0.063	10
1960s	0.0505	0.05	0.051	10
1970s	0.0452	0.042	0.05	10
1980s	0.0554	0.042	0.067	10
1990s	0.0515	0.048	0.061	10
2000s	0.048	0.048	0.048	10
2010s	0.0475	0.044	0.05	10
2020s	0.0402	0.038	0.048	6

Countries ranked near Ireland

159 Iceland 0.045 compare
159 Seychelles 0.045 compare
161 Latvia 0.044 compare
163 Czechia 0.036 compare
163 Netherlands 0.036 compare
165 Brazil 0.034 compare

See the full ranking of 176 places →

More reference data data for Ireland

Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 1.45 (2050)
Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 1.19 (2050)
Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 4.37 (2050)
Emission Totals - Indirect emissions (N2O) - Crop Residues 0.0921 (2050)
Emission Totals - Indirect emissions (N2O) - Agricultural Soils 4.37 (2050)
Emission Totals - Emissions (N2O) - Manure applied to Soils 4.87 (2050)
Emission Totals - Emissions (N2O) - Manure Management 3.37 (2050)
Emission Totals - Emissions (N2O) - Manure left on Pasture 5.6 (2050)
Emission Totals - Emissions (N2O) - IPCC Agriculture 21.02 (2050)
Emission Totals - Emissions (N2O) - Crop Residues 0.5015 (2050)

All data for Ireland →

Frequently asked questions

What is political centralization index in Ireland?: Political centralization index in Ireland was 0.039 in 2025, according to Our World in Data.
What is the highest political centralization index recorded in Ireland?: The highest recorded value was 0.251 in 1919.
What is the lowest political centralization index recorded in Ireland?: The lowest recorded value was 0.038 in 2022.
How does Ireland rank for political centralization index?: Ireland ranks 162nd out of 176 countries with data for 2025.
Is political centralization index rising or falling in Ireland?: Over the last ten years it is down 20.4%. The long-run trend across the full record is falling.
Where does this Ireland data come from?: The figures come from Our World in Data, published as part of Political centralization index. Statizoid updates them automatically from the source API.

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Political centralization index in Ireland. Statizoid, drawing on Our World in Data. Retrieved 14 November 2026, from https://reference.statizoid.com/stat/political-centralization-index/ireland/

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About this data

Indicator: Political centralization index
Source: Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 176 places, 29,802 data points, 1789–2025
Last refreshed: 30 October 2026