Share of the urban population living in slums, informal settlements or inadequate housing. Source: World Bank — World Development Indicators. Retrieved 15 Oct 2026.
| Period | Slum Population |
|---|---|
| 2022 | 70.1% |
| 2020 | 40.9% |
| 2018 | 43% |
| 2016 | 47.3% |
| 2014 | 51.5% |
| 2012 | 55.8% |
| 2010 | 60% |
| 2008 | 64.3% |
| 2006 | 68.6% |
| 2004 | 72.8% |
| 2002 | 77.1% |
| 2000 | 81.3% |
165 of 207 indicators carry a figure for Tanzania, grouped by topic.