Public Sector Corruption Index in Tanzania
Tanzania: Public Sector Corruption Index was 0.24 in 2025. ◆ Volatile
Public Sector Corruption Index in Tanzania, 1914–2025
Source: V-Dem (2026) – processed by Our World in Data.
Analysis
In 2025, public sector corruption index in Tanzania stood at 0.24.
That represents a change of up 46.3% on the previous year and down 34.1% over ten years.
Over the whole period, public sector corruption index in Tanzania peaked at 0.664 in 1914 and was at its lowest, 0.024, in 1962.
That places Tanzania 119th out of 176 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Public Sector Corruption Index in Tanzania, year by year
| Year | Value | Change |
|---|---|---|
| 1914 | 0.664 | — |
| 1915 | 0.664 | +0.0% |
| 1916 | 0.664 | +0.0% |
| 1917 | 0.664 | +0.0% |
| 1918 | 0.664 | +0.0% |
| 1919 | 0.664 | +0.0% |
| 1920 | 0.664 | +0.0% |
| 1921 | 0.664 | +0.0% |
| 1922 | 0.664 | +0.0% |
| 1923 | 0.664 | +0.0% |
| 1924 | 0.664 | +0.0% |
| 1925 | 0.664 | +0.0% |
| 1926 | 0.664 | +0.0% |
| 1927 | 0.664 | +0.0% |
| 1928 | 0.664 | +0.0% |
| 1929 | 0.664 | +0.0% |
| 1930 | 0.664 | +0.0% |
| 1931 | 0.664 | +0.0% |
| 1932 | 0.664 | +0.0% |
| 1933 | 0.664 | +0.0% |
| 1934 | 0.664 | +0.0% |
| 1935 | 0.664 | +0.0% |
| 1936 | 0.664 | +0.0% |
| 1937 | 0.664 | +0.0% |
| 1938 | 0.664 | +0.0% |
| 1939 | 0.664 | +0.0% |
| 1940 | 0.664 | +0.0% |
| 1941 | 0.664 | +0.0% |
| 1942 | 0.664 | +0.0% |
| 1943 | 0.664 | +0.0% |
| 1944 | 0.664 | +0.0% |
| 1945 | 0.664 | +0.0% |
| 1946 | 0.664 | +0.0% |
| 1947 | 0.664 | +0.0% |
| 1948 | 0.664 | +0.0% |
| 1949 | 0.664 | +0.0% |
| 1950 | 0.664 | +0.0% |
| 1951 | 0.664 | +0.0% |
| 1952 | 0.664 | +0.0% |
| 1953 | 0.664 | +0.0% |
| 1954 | 0.664 | +0.0% |
| 1955 | 0.664 | +0.0% |
| 1956 | 0.664 | +0.0% |
| 1957 | 0.664 | +0.0% |
| 1958 | 0.664 | +0.0% |
| 1959 | 0.664 | +0.0% |
| 1960 | 0.664 | +0.0% |
| 1961 | 0.514 | -22.6% |
| 1962 | 0.024 | -95.3% |
| 1963 | 0.024 | +0.0% |
| 1964 | 0.024 | +0.0% |
| 1965 | 0.024 | +0.0% |
| 1966 | 0.024 | +0.0% |
| 1967 | 0.024 | +0.0% |
| 1968 | 0.024 | +0.0% |
| 1969 | 0.024 | +0.0% |
| 1970 | 0.031 | +29.2% |
| 1971 | 0.031 | +0.0% |
| 1972 | 0.031 | +0.0% |
| 1973 | 0.031 | +0.0% |
| 1974 | 0.031 | +0.0% |
| 1975 | 0.031 | +0.0% |
| 1976 | 0.031 | +0.0% |
| 1977 | 0.031 | +0.0% |
| 1978 | 0.031 | +0.0% |
| 1979 | 0.031 | +0.0% |
| 1980 | 0.055 | +77.4% |
| 1981 | 0.055 | +0.0% |
| 1982 | 0.055 | +0.0% |
| 1983 | 0.055 | +0.0% |
| 1984 | 0.055 | +0.0% |
| 1985 | 0.097 | +76.4% |
| 1986 | 0.14 | +44.3% |
| 1987 | 0.14 | +0.0% |
| 1988 | 0.14 | +0.0% |
| 1989 | 0.14 | +0.0% |
| 1990 | 0.311 | +122.1% |
| 1991 | 0.311 | +0.0% |
| 1992 | 0.311 | +0.0% |
| 1993 | 0.311 | +0.0% |
| 1994 | 0.367 | +18.0% |
| 1995 | 0.415 | +13.1% |
| 1996 | 0.415 | +0.0% |
| 1997 | 0.415 | +0.0% |
| 1998 | 0.415 | +0.0% |
| 1999 | 0.415 | +0.0% |
| 2000 | 0.415 | +0.0% |
| 2001 | 0.415 | +0.0% |
| 2002 | 0.415 | +0.0% |
| 2003 | 0.415 | +0.0% |
| 2004 | 0.415 | +0.0% |
| 2005 | 0.415 | +0.0% |
| 2006 | 0.415 | +0.0% |
| 2007 | 0.415 | +0.0% |
| 2008 | 0.415 | +0.0% |
| 2009 | 0.415 | +0.0% |
| 2010 | 0.415 | +0.0% |
| 2011 | 0.415 | +0.0% |
| 2012 | 0.415 | +0.0% |
| 2013 | 0.45 | +8.4% |
| 2014 | 0.45 | +0.0% |
| 2015 | 0.364 | -19.1% |
| 2016 | 0.243 | -33.2% |
| 2017 | 0.188 | -22.6% |
| 2018 | 0.154 | -18.1% |
| 2019 | 0.154 | +0.0% |
| 2020 | 0.088 | -42.9% |
| 2021 | 0.171 | +94.3% |
| 2022 | 0.151 | -11.7% |
| 2023 | 0.164 | +8.6% |
| 2024 | 0.164 | +0.0% |
| 2025 | 0.24 | +46.3% |
Tanzania compared with similar countries
- Tanzania's 0.24 is below the median for lower middle income countries, which is 0.693, 35% of the median. (46 countries reporting)
- Tanzania's 0.24 is below the median for Sub-Saharan Africa, which is 0.692, 35% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1910s | 0.664 | 0.664 | 0.664 | 6 |
| 1920s | 0.664 | 0.664 | 0.664 | 10 |
| 1930s | 0.664 | 0.664 | 0.664 | 10 |
| 1940s | 0.664 | 0.664 | 0.664 | 10 |
| 1950s | 0.664 | 0.664 | 0.664 | 10 |
| 1960s | 0.137 | 0.024 | 0.664 | 10 |
| 1970s | 0.031 | 0.031 | 0.031 | 10 |
| 1980s | 0.0932 | 0.055 | 0.14 | 10 |
| 1990s | 0.3686 | 0.311 | 0.415 | 10 |
| 2000s | 0.415 | 0.415 | 0.415 | 10 |
| 2010s | 0.3248 | 0.154 | 0.45 | 10 |
| 2020s | 0.163 | 0.088 | 0.24 | 6 |
Countries ranked near Tanzania
More social development data for Tanzania
- Refugees under the mandate of the UNHCR by country or territory of 171,142 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 1,592 (2025)
- Political Rights Rating 6 (2025)
- Electoral democracy 0 (2025)
- Political rights rating fh, annual growth rate 0 % change on previous year (2025)
- Political rights rating fh, gaps filled 6 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0 units per person (2025)
- Refugees under the mandate of the UNHCR by country or territory of 1,592 (2025)
- Refugees under the mandate of the UNHCR by country or territory of 0.0024 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 public sector corruption index in Tanzania?
- Public sector corruption index in Tanzania was 0.24 in 2025, according to V-Dem (2026) – processed by Our World in Data.
- What is the highest public sector corruption index recorded in Tanzania?
- The highest recorded value was 0.664 in 1914.
- What is the lowest public sector corruption index recorded in Tanzania?
- The lowest recorded value was 0.024 in 1962.
- How does Tanzania rank for public sector corruption index?
- Tanzania ranks 119th out of 176 countries with data for 2025.
- Is public sector corruption index rising or falling in Tanzania?
- Over the last ten years it is down 34.1%. The long-run trend across the full record is volatile.
- Where does this Tanzania data come from?
- The figures come from V-Dem (2026) – processed by Our World in Data, published as part of Public Sector Corruption Index. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 112 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 public sector employees engage in bribery and theft. The index ranges from 0 to 1 (highly corrupt).