Legislative Corruption Score in Iran
Iran: Legislative Corruption Score was -1.51 in 2025. ◆ Volatile
Latest (2025)
-1.51
Change on year
unchanged
World rank
147th
of 174 countries
All-time high
0.632
in 1914
All-time low
-1.72
in 2021
Years of data
108
1906–2025
Legislative Corruption Score in Iran, 1906–2025
Source: V-Dem (2026) – processed by Our World in Data.
Analysis
The most recent figure for legislative corruption score in Iran is -1.51, measured in 2025.
That represents a change of down 29.1% over ten years.
Over the whole period, legislative corruption score in Iran peaked at 0.632 in 1914 and was at its lowest, -1.72, in 2021.
That places Iran 147th out of 174 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.
Legislative Corruption Score in Iran, year by year
| Year | Value | Change |
|---|---|---|
| 1906 | 0.609 | — |
| 1907 | 0.609 | +0.0% |
| 1909 | 0.612 | +0.5% |
| 1910 | 0.612 | +0.0% |
| 1914 | 0.632 | +3.3% |
| 1915 | 0.632 | +0.0% |
| 1922 | 0.018 | -97.2% |
| 1923 | 0.018 | +0.0% |
| 1924 | 0.018 | +0.0% |
| 1925 | 0.018 | +0.0% |
| 1926 | 0.018 | +0.0% |
| 1927 | 0.018 | +0.0% |
| 1928 | 0.018 | +0.0% |
| 1929 | 0.018 | +0.0% |
| 1930 | 0.018 | +0.0% |
| 1931 | 0.018 | +0.0% |
| 1932 | 0.018 | +0.0% |
| 1933 | 0.018 | +0.0% |
| 1934 | 0.018 | +0.0% |
| 1935 | 0.018 | +0.0% |
| 1936 | 0.018 | +0.0% |
| 1937 | 0.018 | +0.0% |
| 1938 | 0.018 | +0.0% |
| 1939 | 0.018 | +0.0% |
| 1940 | 0.018 | +0.0% |
| 1941 | 0.018 | +0.0% |
| 1942 | 0.018 | +0.0% |
| 1943 | 0.018 | +0.0% |
| 1944 | 0.018 | +0.0% |
| 1945 | 0.018 | +0.0% |
| 1946 | 0.018 | +0.0% |
| 1947 | 0.018 | +0.0% |
| 1948 | 0.018 | +0.0% |
| 1949 | 0.018 | +0.0% |
| 1950 | 0.018 | +0.0% |
| 1951 | 0.018 | +0.0% |
| 1952 | 0.018 | +0.0% |
| 1954 | 0.023 | +27.8% |
| 1955 | 0.023 | +0.0% |
| 1956 | 0.023 | +0.0% |
| 1957 | 0.023 | +0.0% |
| 1958 | 0.023 | +0.0% |
| 1959 | 0.023 | +0.0% |
| 1960 | 0.023 | +0.0% |
| 1961 | 0.023 | +0.0% |
| 1962 | 0.023 | +0.0% |
| 1963 | 0.023 | +0.0% |
| 1964 | 0.023 | +0.0% |
| 1965 | 0.023 | +0.0% |
| 1966 | 0.023 | +0.0% |
| 1967 | 0.023 | +0.0% |
| 1968 | 0.023 | +0.0% |
| 1969 | 0.023 | +0.0% |
| 1970 | 0.023 | +0.0% |
| 1971 | 0.023 | +0.0% |
| 1972 | 0.023 | +0.0% |
| 1973 | 0.023 | +0.0% |
| 1974 | 0.023 | +0.0% |
| 1975 | 0.023 | +0.0% |
| 1976 | 0.023 | +0.0% |
| 1977 | 0.023 | +0.0% |
| 1978 | 0.023 | +0.0% |
| 1980 | -0.385 | -1773.9% |
| 1981 | -0.385 | -0.0% |
| 1982 | -0.385 | -0.0% |
| 1983 | -0.385 | -0.0% |
| 1984 | -0.385 | -0.0% |
| 1985 | -0.385 | -0.0% |
| 1986 | -0.385 | -0.0% |
| 1987 | -0.385 | -0.0% |
| 1988 | -0.385 | -0.0% |
| 1989 | -0.518 | +34.5% |
| 1990 | -0.518 | -0.0% |
| 1991 | -0.518 | -0.0% |
| 1992 | -0.518 | -0.0% |
| 1993 | -0.518 | -0.0% |
| 1994 | -0.518 | -0.0% |
| 1995 | -0.518 | -0.0% |
| 1996 | -0.518 | -0.0% |
| 1997 | 0.021 | -104.1% |
| 1998 | 0.021 | +0.0% |
| 1999 | 0.021 | +0.0% |
| 2000 | 0.021 | +0.0% |
| 2001 | 0.021 | +0.0% |
| 2002 | 0.021 | +0.0% |
| 2003 | -0.148 | -804.8% |
| 2004 | -0.148 | -0.0% |
| 2005 | -1.23 | +732.4% |
| 2006 | -1.23 | -0.0% |
| 2007 | -1.23 | -0.0% |
| 2008 | -1.23 | -0.0% |
| 2009 | -1.23 | -0.0% |
| 2010 | -1.17 | -5.0% |
| 2011 | -1.17 | -0.0% |
| 2012 | -1.17 | -0.0% |
| 2013 | -1.17 | -0.0% |
| 2014 | -1.17 | -0.0% |
| 2015 | -1.17 | -0.0% |
| 2016 | -1.14 | -2.6% |
| 2017 | -1.2 | +5.4% |
| 2018 | -1.16 | -3.8% |
| 2019 | -1.21 | +4.6% |
| 2020 | -1.51 | +25.0% |
| 2021 | -1.72 | +13.6% |
| 2022 | -1.5 | -12.9% |
| 2023 | -1.5 | -0.0% |
| 2024 | -1.51 | +1.0% |
| 2025 | -1.51 | -0.0% |
Iran compared with similar countries
- Iran's -1.51 is below the median for upper middle income countries, which is -0.683, 2.2× the median. (48 countries reporting)
- Iran's -1.51 is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is -0.6095, 2.5× the median. (22 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1900s | 0.61 | 0.609 | 0.612 | 3 |
| 1910s | 0.6253 | 0.612 | 0.632 | 3 |
| 1920s | 0.018 | 0.018 | 0.018 | 8 |
| 1930s | 0.018 | 0.018 | 0.018 | 10 |
| 1940s | 0.018 | 0.018 | 0.018 | 10 |
| 1950s | 0.0213 | 0.018 | 0.023 | 9 |
| 1960s | 0.023 | 0.023 | 0.023 | 10 |
| 1970s | 0.023 | 0.023 | 0.023 | 9 |
| 1980s | -0.3983 | -0.518 | -0.385 | 10 |
| 1990s | -0.3563 | -0.518 | 0.021 | 10 |
| 2000s | -0.6393 | -1.23 | 0.021 | 10 |
| 2010s | -1.17 | -1.21 | -1.14 | 10 |
| 2020s | -1.54 | -1.72 | -1.5 | 6 |
Countries ranked near Iran
More social development data for Iran
- Refugees under the mandate of the UNHCR by country or territory of 770,514 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 157,912 (2025)
- Political Rights Rating 7 (2025)
- Electoral democracy 0 (2025)
- Political rights rating fh, annual growth rate 0 % change on previous year (2025)
- Political rights rating fh, gaps filled 7 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0.0017 units per person (2025)
- Refugees under the mandate of the UNHCR by country or territory of 157,912 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0.0083 units per person (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0 units per US$ of GDP (2025)
Frequently asked questions
- What is legislative corruption score in Iran?
- Legislative corruption score in Iran was -1.51 in 2025, according to V-Dem (2026) – processed by Our World in Data.
- What is the highest legislative corruption score recorded in Iran?
- The highest recorded value was 0.632 in 1914.
- What is the lowest legislative corruption score recorded in Iran?
- The lowest recorded value was -1.72 in 2021.
- How does Iran rank for legislative corruption score?
- Iran ranks 147th out of 174 countries with data for 2025.
- Is legislative corruption score rising or falling in Iran?
- Over the last ten years it is down 29.1%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Legislative Corruption Score. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 108 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Data by V-Dem. Expert estimates of the extent to which members of the legislature abuse their position for financial gain, such as bribes, government contracts, future employment, or stealing from the state. Higher scores mean less corruption. A score of 0 is approximately the average across all countries and years.