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Political centralization index in Portugal

Portugal: Political centralization index was 0.06 in 2025. ◆ Volatile

Latest (2025)
0.06
Change on year
up 20.0%
World rank
152nd
of 176 countries
All-time high
0.783
in 1927
All-time low
0.023
in 2018
Years of data
200
1820–2025

Political centralization index in Portugal, 1820–2025

00.20.40.60.8182019222025

Source: Our World in Data.

Analysis

Portugal recorded 0.06 for political centralization index in 2025.

The figure is up 20.0% on the previous year and up 62.2% over ten years.

Over the whole period, political centralization index in Portugal peaked at 0.783 in 1927 and was at its lowest, 0.023, in 2018.

That places Portugal 152nd out of 176 countries with data for 2025, putting it in the bottom quarter.

The series is highly variable year to year, so single readings are best treated with caution.

Political centralization index in Portugal, year by year

Year Value Change
1820 0.489 —
1821 0.489 +0.0%
1822 0.489 +0.0%
1823 0.489 +0.0%
1824 0.489 +0.0%
1825 0.489 +0.0%
1826 0.489 +0.0%
1833 0.62 +26.8%
1834 0.715 +15.3%
1835 0.704 -1.5%
1836 0.704 +0.0%
1837 0.704 +0.0%
1838 0.704 +0.0%
1839 0.704 +0.0%
1840 0.704 +0.0%
1841 0.704 +0.0%
1842 0.704 +0.0%
1843 0.704 +0.0%
1844 0.704 +0.0%
1845 0.704 +0.0%
1846 0.704 +0.0%
1847 0.704 +0.0%
1848 0.704 +0.0%
1849 0.705 +0.1%
1850 0.705 +0.0%
1851 0.705 +0.0%
1852 0.619 -12.2%
1853 0.619 +0.0%
1854 0.619 +0.0%
1855 0.619 +0.0%
1856 0.619 +0.0%
1857 0.619 +0.0%
1858 0.619 +0.0%
1859 0.619 +0.0%
1860 0.565 -8.7%
1861 0.565 +0.0%
1862 0.565 +0.0%
1863 0.565 +0.0%
1864 0.565 +0.0%
1865 0.565 +0.0%
1866 0.565 +0.0%
1867 0.565 +0.0%
1868 0.565 +0.0%
1869 0.565 +0.0%
1870 0.565 +0.0%
1871 0.565 +0.0%
1872 0.565 +0.0%
1873 0.565 +0.0%
1874 0.565 +0.0%
1875 0.565 +0.0%
1876 0.565 +0.0%
1877 0.565 +0.0%
1878 0.565 +0.0%
1879 0.565 +0.0%
1880 0.565 +0.0%
1881 0.565 +0.0%
1882 0.565 +0.0%
1883 0.565 +0.0%
1884 0.565 +0.0%
1885 0.565 +0.0%
1886 0.565 +0.0%
1887 0.565 +0.0%
1888 0.565 +0.0%
1889 0.565 +0.0%
1890 0.565 +0.0%
1891 0.565 +0.0%
1892 0.565 +0.0%
1893 0.565 +0.0%
1894 0.565 +0.0%
1895 0.565 +0.0%
1896 0.565 +0.0%
1897 0.565 +0.0%
1898 0.565 +0.0%
1899 0.565 +0.0%
1900 0.565 +0.0%
1901 0.565 +0.0%
1902 0.565 +0.0%
1903 0.565 +0.0%
1904 0.565 +0.0%
1905 0.565 +0.0%
1906 0.578 +2.3%
1907 0.578 +0.0%
1908 0.574 -0.7%
1909 0.574 +0.0%
1910 0.58 +1.0%
1911 0.65 +12.1%
1912 0.533 -18.0%
1913 0.533 +0.0%
1914 0.533 +0.0%
1915 0.533 +0.0%
1916 0.533 +0.0%
1917 0.551 +3.4%
1918 0.551 +0.0%
1919 0.537 -2.5%
1920 0.537 +0.0%
1921 0.541 +0.7%
1922 0.541 +0.0%
1923 0.541 +0.0%
1924 0.541 +0.0%
1925 0.55 +1.7%
1926 0.673 +22.4%
1927 0.783 +16.3%
1928 0.783 +0.0%
1929 0.783 +0.0%
1930 0.783 +0.0%
1931 0.783 +0.0%
1932 0.778 -0.6%
1933 0.78 +0.3%
1934 0.773 -0.9%
1935 0.773 +0.0%
1936 0.773 +0.0%
1937 0.773 +0.0%
1938 0.773 +0.0%
1939 0.773 +0.0%
1940 0.773 +0.0%
1941 0.759 -1.8%
1942 0.759 +0.0%
1943 0.759 +0.0%
1944 0.759 +0.0%
1945 0.759 +0.0%
1946 0.759 +0.0%
1947 0.759 +0.0%
1948 0.759 +0.0%
1949 0.759 +0.0%
1950 0.759 +0.0%
1951 0.761 +0.3%
1952 0.761 +0.0%
1953 0.761 +0.0%
1954 0.761 +0.0%
1955 0.761 +0.0%
1956 0.761 +0.0%
1957 0.761 +0.0%
1958 0.761 +0.0%
1959 0.761 +0.0%
1960 0.761 +0.0%
1961 0.761 +0.0%
1962 0.761 +0.0%
1963 0.761 +0.0%
1964 0.761 +0.0%
1965 0.761 +0.0%
1966 0.761 +0.0%
1967 0.761 +0.0%
1968 0.761 +0.0%
1969 0.761 +0.0%
1970 0.761 +0.0%
1971 0.761 +0.0%
1972 0.761 +0.0%
1973 0.761 +0.0%
1974 0.391 -48.6%
1975 0.222 -43.2%
1976 0.212 -4.5%
1977 0.081 -61.8%
1978 0.081 +0.0%
1979 0.081 +0.0%
1980 0.072 -11.1%
1981 0.072 +0.0%
1982 0.072 +0.0%
1983 0.049 -31.9%
1984 0.049 +0.0%
1985 0.049 +0.0%
1986 0.042 -14.3%
1987 0.042 +0.0%
1988 0.042 +0.0%
1989 0.042 +0.0%
1990 0.042 +0.0%
1991 0.042 +0.0%
1992 0.042 +0.0%
1993 0.042 +0.0%
1994 0.042 +0.0%
1995 0.042 +0.0%
1996 0.042 +0.0%
1997 0.042 +0.0%
1998 0.042 +0.0%
1999 0.042 +0.0%
2000 0.042 +0.0%
2001 0.042 +0.0%
2002 0.036 -14.3%
2003 0.036 +0.0%
2004 0.036 +0.0%
2005 0.036 +0.0%
2006 0.036 +0.0%
2007 0.036 +0.0%
2008 0.036 +0.0%
2009 0.037 +2.8%
2010 0.038 +2.7%
2011 0.037 -2.6%
2012 0.034 -8.1%
2013 0.032 -5.9%
2014 0.032 +0.0%
2015 0.037 +15.6%
2016 0.043 +16.2%
2017 0.025 -41.9%
2018 0.023 -8.0%
2019 0.026 +13.0%
2020 0.05 +92.3%
2021 0.049 -2.0%
2022 0.056 +14.3%
2023 0.06 +7.1%
2024 0.05 -16.7%
2025 0.06 +20.0%

Portugal compared with similar countries

  • Portugal's 0.06 is below the median for high income countries, which is 0.09, 67% of the median. (55 countries reporting)
  • Portugal's 0.06 is below the median for Europe & Central Asia, which is 0.1585, 38% of the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1820s 0.489 0.489 0.489 7
1830s 0.6936 0.62 0.715 7
1840s 0.7041 0.704 0.705 10
1850s 0.6362 0.619 0.705 10
1860s 0.565 0.565 0.565 10
1870s 0.565 0.565 0.565 10
1880s 0.565 0.565 0.565 10
1890s 0.565 0.565 0.565 10
1900s 0.5694 0.565 0.578 10
1910s 0.5534 0.533 0.65 10
1920s 0.6273 0.537 0.783 10
1930s 0.7762 0.773 0.783 10
1940s 0.7604 0.759 0.773 10
1950s 0.7608 0.759 0.761 10
1960s 0.761 0.761 0.761 10
1970s 0.4112 0.081 0.761 10
1980s 0.0531 0.042 0.072 10
1990s 0.042 0.042 0.042 10
2000s 0.0373 0.036 0.042 10
2010s 0.0327 0.023 0.043 10
2020s 0.0542 0.049 0.06 6

Countries ranked near Portugal

  1. 149 South Africa 0.084 compare
  2. 150 Barbados 0.076 compare
  3. 151 Austria 0.075 compare
  4. 152 United Kingdom 0.06 compare
  5. 154 Guatemala 0.059 compare
  6. 155 Spain 0.05 compare

See the full ranking of 176 places →

More reference data data for Portugal

All data for Portugal →

Frequently asked questions

What is political centralization index in Portugal?
Political centralization index in Portugal was 0.06 in 2025, according to Our World in Data.
What is the highest political centralization index recorded in Portugal?
The highest recorded value was 0.783 in 1927.
What is the lowest political centralization index recorded in Portugal?
The lowest recorded value was 0.023 in 2018.
How does Portugal rank for political centralization index?
Portugal ranks 152nd out of 176 countries with data for 2025.
Is political centralization index rising or falling in Portugal?
Over the last ten years it is up 62.2%. The long-run trend across the full record is volatile.
Where does this Portugal 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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Relationships involving this indicator

Comparisons with other indicators across countries. Each was re-measured with population and national income held constant, so a relationship that only reflected country size is not listed here.

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

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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