Corn: Yield gap in Tanzania
Tanzania: Corn: Yield gap was 3.02 tonnes per hectare in 2024. ▬ Flat
Corn: Yield gap in Tanzania, 2000–2024
Source: Mueller et al. (2012); USDA National Agricultural Statistics Service (NASS) (2026); Food and Agriculture Organization of the United Nations (2025) – with major processing by Our World in Data. Measured in tonnes per hectare.
Analysis
In 2024, corn: yield gap in Tanzania stood at 3.02 tonnes per hectare.
The figure is up 5.3% on the previous year and down 4.2% over ten years.
Over the whole period, corn: yield gap in Tanzania peaked at 4.03 tonnes per hectare in 2003 and was at its lowest, 1.64 tonnes per hectare, in 2001.
Tanzania ranks 35th of 115 countries on this measure, in the middle of the range.
Corn: Yield gap in Tanzania, year by year
| Year | tonnes per hectare | Change |
|---|---|---|
| 2000 | 2.85 tonnes per hectare | — |
| 2001 | 1.64 tonnes per hectare | -42.3% |
| 2002 | 2.21 tonnes per hectare | +34.7% |
| 2003 | 4.03 tonnes per hectare | +81.8% |
| 2004 | 3.31 tonnes per hectare | -17.7% |
| 2005 | 3.77 tonnes per hectare | +13.8% |
| 2006 | 3.45 tonnes per hectare | -8.6% |
| 2007 | 3.37 tonnes per hectare | -2.2% |
| 2008 | 3.41 tonnes per hectare | +1.2% |
| 2009 | 3.66 tonnes per hectare | +7.1% |
| 2010 | 3.23 tonnes per hectare | -11.7% |
| 2011 | 3.46 tonnes per hectare | +7.2% |
| 2012 | 3.54 tonnes per hectare | +2.3% |
| 2013 | 3.48 tonnes per hectare | -1.7% |
| 2014 | 3.15 tonnes per hectare | -9.3% |
| 2015 | 3.22 tonnes per hectare | +2.1% |
| 2016 | 3.19 tonnes per hectare | -0.8% |
| 2017 | 3.03 tonnes per hectare | -5.1% |
| 2018 | 3.01 tonnes per hectare | -0.6% |
| 2019 | 3.13 tonnes per hectare | +4.0% |
| 2020 | 3.18 tonnes per hectare | +1.6% |
| 2021 | 3.18 tonnes per hectare | -0.1% |
| 2022 | 3.15 tonnes per hectare | -1.1% |
| 2023 | 2.87 tonnes per hectare | -8.7% |
| 2024 | 3.02 tonnes per hectare | +5.3% |
Tanzania compared with similar countries
- Tanzania's 3.02 tonnes per hectare is above the median for lower middle income countries, which is 2.37 tonnes per hectare, 1.3× the median. (31 countries reporting)
- Tanzania's 3.02 tonnes per hectare is above the median for Sub-Saharan Africa, which is 2.47 tonnes per hectare, 1.2× the median. (31 countries reporting)
Biggest year-on-year movements
Years where Corn: Yield gap in Tanzania changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2003 | +81.8% | 2.21 tonnes per hectare | 4.03 tonnes per hectare |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 3.17 tonnes per hectare | 1.64 tonnes per hectare | 4.03 tonnes per hectare | 10 |
| 2010s | 3.25 tonnes per hectare | 3.01 tonnes per hectare | 3.54 tonnes per hectare | 10 |
| 2020s | 3.08 tonnes per hectare | 2.87 tonnes per hectare | 3.18 tonnes per hectare | 5 |
Countries ranked near Tanzania
- 32 Namibia 3.09 tonnes per hectare compare
- 33 South Korea 3.07 tonnes per hectare compare
- 34 Luxembourg 3.03 tonnes per hectare compare
- 36 Zambia 3.01 tonnes per hectare compare
- 37 Congo 2.89 tonnes per hectare compare
- 38 Kyrgyzstan 2.82 tonnes per hectare compare
More agriculture & rural data for Tanzania
- Agriculture, forestry, and fishing, value added (current US$), annual 11.77 % change on previous year (2025)
- Agriculture, forestry, and fishing, value added (current US$), per 0.2291 current US$ per US$ of GDP (2025)
- Agriculture, forestry, and fishing, value added (current US$), per 292.74 current US$ per person (2025)
- Rural population, annual growth rate 1.74 % change on previous year (2025)
- Rural population, per unit of GDP 0.0005 units per US$ of GDP (2025)
- Rural population, per capita 0.6312 units per person (2025)
- Share of GDP from agriculture 22.9% (2025)
- Agriculture as a share of GDP vs. GDP per capita 22.9% (2025)
- Agricultural raw materials exports 2.5% (2024)
- Agricultural raw materials imports 1.1% (2024)
Frequently asked questions
- What is corn: yield gap in Tanzania?
- Corn: yield gap in Tanzania was 3.02 tonnes per hectare in 2024, according to Mueller et al. (2012); USDA National Agricultural Statistics Service (NASS) (2026); Food and Agriculture Organization of the United Nations (2025) – with major processing by Our World in Data.
- What is the highest corn: yield gap recorded in Tanzania?
- The highest recorded value was 4.03 tonnes per hectare in 2003.
- What is the lowest corn: yield gap recorded in Tanzania?
- The lowest recorded value was 1.64 tonnes per hectare in 2001.
- How does Tanzania rank for corn: yield gap?
- Tanzania ranks 35th out of 115 countries with data for 2024.
- Is corn: yield gap rising or falling in Tanzania?
- Over the last ten years it is down 4.2%. The long-run trend across the full record is flat.
- Where does this Tanzania data come from?
- The figures come from Mueller et al. (2012); USDA National Agricultural Statistics Service (NASS) (2026); Food and Agriculture Organization of the United Nations (2025) – with major processing by Our World in Data, published as part of Corn: Yield gap. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 25 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Yield gaps are the difference between attainable yields and actual yields, measured in tonnes per hectare. Negative values have been replaced by zero, meaning that the attainable yield has been reached.