Government Effectiveness - Governance estimate (approx. -2.5 to +2.5) in Tanzania
Tanzania: Government Effectiveness - Governance estimate (approx. -2.5 to +2.5) was -0.2555 approx. -2.5 to +2.5 in 2025. ▲ Rising
Government Effectiveness - Governance estimate in Tanzania, 1996–2025
Source: The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG). Measured in approx. -2.5 to +2.5.
Analysis
The most recent figure for government effectiveness - governance estimate in Tanzania is -0.2555 approx. -2.5 to +2.5, measured in 2025. That is the highest value across all 27 years on record.
That represents a change of up 7.1% on the previous year and up 16.6% over ten years.
Over the whole period, government effectiveness - governance estimate in Tanzania peaked at -0.2555 approx. -2.5 to +2.5 in 2025 and was at its lowest, -1.28 approx. -2.5 to +2.5, in 1996.
Tanzania ranks 132nd of 206 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 27 years of available data.
Government Effectiveness - Governance estimate (approx. -2.5 to +2.5) in Tanzania, year by year
| Year | approx. -2.5 to +2.5 | Change |
|---|---|---|
| 1996 | -1.28 approx. -2.5 to +2.5 | — |
| 1998 | -0.9022 approx. -2.5 to +2.5 | -29.3% |
| 2000 | -0.9025 approx. -2.5 to +2.5 | +0.0% |
| 2002 | -0.7786 approx. -2.5 to +2.5 | -13.7% |
| 2003 | -0.7742 approx. -2.5 to +2.5 | -0.6% |
| 2004 | -0.6959 approx. -2.5 to +2.5 | -10.1% |
| 2005 | -0.5261 approx. -2.5 to +2.5 | -24.4% |
| 2006 | -0.4181 approx. -2.5 to +2.5 | -20.5% |
| 2007 | -0.4061 approx. -2.5 to +2.5 | -2.9% |
| 2008 | -0.4494 approx. -2.5 to +2.5 | +10.7% |
| 2009 | -0.4017 approx. -2.5 to +2.5 | -10.6% |
| 2010 | -0.3831 approx. -2.5 to +2.5 | -4.6% |
| 2011 | -0.3992 approx. -2.5 to +2.5 | +4.2% |
| 2012 | -0.4964 approx. -2.5 to +2.5 | +24.4% |
| 2013 | -0.4703 approx. -2.5 to +2.5 | -5.3% |
| 2014 | -0.4088 approx. -2.5 to +2.5 | -13.1% |
| 2015 | -0.3064 approx. -2.5 to +2.5 | -25.1% |
| 2016 | -0.2709 approx. -2.5 to +2.5 | -11.6% |
| 2017 | -0.2822 approx. -2.5 to +2.5 | +4.2% |
| 2018 | -0.3998 approx. -2.5 to +2.5 | +41.7% |
| 2019 | -0.4575 approx. -2.5 to +2.5 | +14.4% |
| 2020 | -0.4373 approx. -2.5 to +2.5 | -4.4% |
| 2021 | -0.43 approx. -2.5 to +2.5 | -1.7% |
| 2022 | -0.3739 approx. -2.5 to +2.5 | -13.0% |
| 2023 | -0.3471 approx. -2.5 to +2.5 | -7.2% |
| 2024 | -0.2751 approx. -2.5 to +2.5 | -20.7% |
| 2025 | -0.2555 approx. -2.5 to +2.5 | -7.1% |
Tanzania compared with similar countries
- Tanzania's -0.2555 approx. -2.5 to +2.5 is above the median for lower middle income countries, which is -0.6398 approx. -2.5 to +2.5, 40% of the median. (47 countries reporting)
- Tanzania's -0.2555 approx. -2.5 to +2.5 is above the median for Sub-Saharan Africa, which is -0.793 approx. -2.5 to +2.5, 32% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | -1.09 approx. -2.5 to +2.5 | -1.28 approx. -2.5 to +2.5 | -0.9022 approx. -2.5 to +2.5 | 2 |
| 2000s | -0.5947 approx. -2.5 to +2.5 | -0.9025 approx. -2.5 to +2.5 | -0.4017 approx. -2.5 to +2.5 | 9 |
| 2010s | -0.3875 approx. -2.5 to +2.5 | -0.4964 approx. -2.5 to +2.5 | -0.2709 approx. -2.5 to +2.5 | 10 |
| 2020s | -0.3532 approx. -2.5 to +2.5 | -0.4373 approx. -2.5 to +2.5 | -0.2555 approx. -2.5 to +2.5 | 6 |
Countries ranked near Tanzania
- 129 Armenia -0.2372 approx. -2.5 to +2.5 compare
- 130 Maldives -0.241 approx. -2.5 to +2.5 compare
- 131 Cote d'Ivoire -0.2542 approx. -2.5 to +2.5 compare
- 133 Tunisia -0.2846 approx. -2.5 to +2.5 compare
- 134 Uganda -0.3112 approx. -2.5 to +2.5 compare
- 135 Marshall Islands -0.3531 approx. -2.5 to +2.5 compare
More reference data data for Tanzania
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.6405 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 11.44 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 14.14 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.7582 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 14.14 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 2.15 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 1.26 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 59.37 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 72.45 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 4.13 (2050)
Frequently asked questions
- What is government effectiveness - governance estimate in Tanzania?
- Government effectiveness - governance estimate in Tanzania was -0.2555 approx. -2.5 to +2.5 in 2025, according to The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG).
- What is the highest government effectiveness - governance estimate recorded in Tanzania?
- The highest recorded value was -0.2555 approx. -2.5 to +2.5 in 2025.
- What is the lowest government effectiveness - governance estimate recorded in Tanzania?
- The lowest recorded value was -1.28 approx. -2.5 to +2.5 in 1996.
- How does Tanzania rank for government effectiveness - governance estimate?
- Tanzania ranks 132nd out of 206 countries with data for 2025.
- Is government effectiveness - governance estimate rising or falling in Tanzania?
- Over the last ten years it is up 16.6%. The long-run trend across the full record is rising.
- Where does this Tanzania data come from?
- The figures come from The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG), published as part of Government Effectiveness - Governance estimate (approx. -2.5 to +2.5). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 27 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
Government Effectiveness (GE) captures perceptions of the quality of public services, the civil service, policy formulation and implementation, and the credibility of a government’s decisions. Governance estimate from the aggregation model, in units of a standard normal distribution, i.e. ranging from approximately -2.5 to 2.5. Larger values correspond to better governance. The (country-series-time) metadata include the (a) number of sources, and (b) standard error. The number of sources indicates the number of underlying data sources on which the governance estimate is based. The standard error indicates the precision of the governance estimate. Larger values indicate less precise estimates. A 90% confidence interval for the governance estimate is given by the estimate +/- 1.64 times the standard error.