Centralization of Political Power Index in Iran
Iran: Centralization of Political Power Index was 0.834 in 2025. ▼ Falling
Latest (2025)
0.834
Change on year
unchanged
World rank
29th
of 176 countries
All-time high
0.974
in 1900
All-time low
0.684
in 1979
Years of data
126
1900–2025
Centralization of Political Power Index in Iran, 1900–2025
Source: V-Dem (2026) – processed by Our World in Data.
Analysis
In 2025, centralization of political power index in Iran stood at 0.834.
Compared with earlier readings it is up 11.5% over ten years.
Over the whole period, centralization of political power index in Iran peaked at 0.974 in 1900 and was at its lowest, 0.684, in 1979.
That places Iran 29th out of 176 countries with data for 2025, putting it in the top quarter.
The long-run direction has been consistently falling across the 126 years of available data.
Centralization of Political Power Index in Iran, year by year
| Year | Value | Change |
|---|---|---|
| 1900 | 0.974 | — |
| 1901 | 0.974 | +0.0% |
| 1902 | 0.974 | +0.0% |
| 1903 | 0.974 | +0.0% |
| 1904 | 0.974 | +0.0% |
| 1905 | 0.974 | +0.0% |
| 1906 | 0.907 | -6.9% |
| 1907 | 0.851 | -6.2% |
| 1908 | 0.863 | +1.4% |
| 1909 | 0.871 | +0.9% |
| 1910 | 0.875 | +0.5% |
| 1911 | 0.88 | +0.6% |
| 1912 | 0.936 | +6.4% |
| 1913 | 0.936 | +0.0% |
| 1914 | 0.931 | -0.5% |
| 1915 | 0.874 | -6.1% |
| 1916 | 0.931 | +6.5% |
| 1917 | 0.931 | +0.0% |
| 1918 | 0.931 | +0.0% |
| 1919 | 0.931 | +0.0% |
| 1920 | 0.931 | +0.0% |
| 1921 | 0.933 | +0.2% |
| 1922 | 0.879 | -5.8% |
| 1923 | 0.87 | -1.0% |
| 1924 | 0.87 | +0.0% |
| 1925 | 0.885 | +1.7% |
| 1926 | 0.891 | +0.7% |
| 1927 | 0.903 | +1.3% |
| 1928 | 0.917 | +1.6% |
| 1929 | 0.917 | +0.0% |
| 1930 | 0.917 | +0.0% |
| 1931 | 0.917 | +0.0% |
| 1932 | 0.917 | +0.0% |
| 1933 | 0.917 | +0.0% |
| 1934 | 0.886 | -3.4% |
| 1935 | 0.886 | +0.0% |
| 1936 | 0.886 | +0.0% |
| 1937 | 0.886 | +0.0% |
| 1938 | 0.886 | +0.0% |
| 1939 | 0.886 | +0.0% |
| 1940 | 0.886 | +0.0% |
| 1941 | 0.894 | +0.9% |
| 1942 | 0.825 | -7.7% |
| 1943 | 0.825 | +0.0% |
| 1944 | 0.8 | -3.0% |
| 1945 | 0.799 | -0.1% |
| 1946 | 0.799 | +0.0% |
| 1947 | 0.799 | +0.0% |
| 1948 | 0.799 | +0.0% |
| 1949 | 0.799 | +0.0% |
| 1950 | 0.753 | -5.8% |
| 1951 | 0.753 | +0.0% |
| 1952 | 0.753 | +0.0% |
| 1953 | 0.734 | -2.5% |
| 1954 | 0.818 | +11.4% |
| 1955 | 0.808 | -1.2% |
| 1956 | 0.808 | +0.0% |
| 1957 | 0.808 | +0.0% |
| 1958 | 0.808 | +0.0% |
| 1959 | 0.808 | +0.0% |
| 1960 | 0.808 | +0.0% |
| 1961 | 0.808 | +0.0% |
| 1962 | 0.808 | +0.0% |
| 1963 | 0.806 | -0.2% |
| 1964 | 0.803 | -0.4% |
| 1965 | 0.803 | +0.0% |
| 1966 | 0.803 | +0.0% |
| 1967 | 0.803 | +0.0% |
| 1968 | 0.803 | +0.0% |
| 1969 | 0.803 | +0.0% |
| 1970 | 0.803 | +0.0% |
| 1971 | 0.803 | +0.0% |
| 1972 | 0.803 | +0.0% |
| 1973 | 0.803 | +0.0% |
| 1974 | 0.803 | +0.0% |
| 1975 | 0.803 | +0.0% |
| 1976 | 0.803 | +0.0% |
| 1977 | 0.803 | +0.0% |
| 1978 | 0.803 | +0.0% |
| 1979 | 0.684 | -14.8% |
| 1980 | 0.791 | +15.6% |
| 1981 | 0.707 | -10.6% |
| 1982 | 0.707 | +0.0% |
| 1983 | 0.777 | +9.9% |
| 1984 | 0.779 | +0.3% |
| 1985 | 0.779 | +0.0% |
| 1986 | 0.785 | +0.8% |
| 1987 | 0.785 | +0.0% |
| 1988 | 0.785 | +0.0% |
| 1989 | 0.785 | +0.0% |
| 1990 | 0.793 | +1.0% |
| 1991 | 0.793 | +0.0% |
| 1992 | 0.793 | +0.0% |
| 1993 | 0.791 | -0.3% |
| 1994 | 0.791 | +0.0% |
| 1995 | 0.791 | +0.0% |
| 1996 | 0.791 | +0.0% |
| 1997 | 0.792 | +0.1% |
| 1998 | 0.75 | -5.3% |
| 1999 | 0.75 | +0.0% |
| 2000 | 0.75 | +0.0% |
| 2001 | 0.759 | +1.2% |
| 2002 | 0.772 | +1.7% |
| 2003 | 0.772 | +0.0% |
| 2004 | 0.772 | +0.0% |
| 2005 | 0.783 | +1.4% |
| 2006 | 0.777 | -0.8% |
| 2007 | 0.777 | +0.0% |
| 2008 | 0.777 | +0.0% |
| 2009 | 0.792 | +1.9% |
| 2010 | 0.785 | -0.9% |
| 2011 | 0.785 | +0.0% |
| 2012 | 0.785 | +0.0% |
| 2013 | 0.748 | -4.7% |
| 2014 | 0.748 | +0.0% |
| 2015 | 0.748 | +0.0% |
| 2016 | 0.735 | -1.7% |
| 2017 | 0.757 | +3.0% |
| 2018 | 0.76 | +0.4% |
| 2019 | 0.777 | +2.2% |
| 2020 | 0.789 | +1.5% |
| 2021 | 0.79 | +0.1% |
| 2022 | 0.826 | +4.6% |
| 2023 | 0.833 | +0.8% |
| 2024 | 0.834 | +0.1% |
| 2025 | 0.834 | +0.0% |
Iran compared with similar countries
- Iran's 0.834 is above the median for upper middle income countries, which is 0.3495, 2.4× the median. (48 countries reporting)
- Iran's 0.834 is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.597, 1.4× the median. (23 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1900s | 0.9336 | 0.851 | 0.974 | 10 |
| 1910s | 0.9156 | 0.874 | 0.936 | 10 |
| 1920s | 0.8996 | 0.87 | 0.933 | 10 |
| 1930s | 0.8984 | 0.886 | 0.917 | 10 |
| 1940s | 0.8225 | 0.799 | 0.894 | 10 |
| 1950s | 0.7851 | 0.734 | 0.818 | 10 |
| 1960s | 0.8048 | 0.803 | 0.808 | 10 |
| 1970s | 0.7911 | 0.684 | 0.803 | 10 |
| 1980s | 0.768 | 0.707 | 0.791 | 10 |
| 1990s | 0.7835 | 0.75 | 0.793 | 10 |
| 2000s | 0.7731 | 0.75 | 0.792 | 10 |
| 2010s | 0.7628 | 0.735 | 0.785 | 10 |
| 2020s | 0.8177 | 0.789 | 0.834 | 6 |
Countries ranked near Iran
- 26 South Sudan 0.847 compare
- 27 Guinea-Bissau 0.843 compare
- 28 United Arab Emirates 0.837 compare
- 29 Kazakhstan 0.834 compare
- 31 Mauritania 0.826 compare
- 32 Haiti 0.809 compare
More reference data data for Iran
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 3.47 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 12.01 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 26.62 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 1.34 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 26.62 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 11.62 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 3.84 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 46.54 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 109.46 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 7.3 (2050)
Frequently asked questions
- What is centralization of political power index in Iran?
- Centralization of political power index in Iran was 0.834 in 2025, according to V-Dem (2026) – processed by Our World in Data.
- What is the highest centralization of political power index recorded in Iran?
- The highest recorded value was 0.974 in 1900.
- What is the lowest centralization of political power index recorded in Iran?
- The lowest recorded value was 0.684 in 1979.
- How does Iran rank for centralization of political power index?
- Iran ranks 29th out of 176 countries with data for 2025.
- Is centralization of political power index rising or falling in Iran?
- Over the last ten years it is up 11.5%. The long-run trend across the full record is falling.
- Where does this Iran data come from?
- The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Centralization of Political Power Index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 126 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Central estimate of the extent to which the executive is unconstrained by the legislature, judiciary, electoral management body, and other oversight.