Tanzania country guide — reviewed 25 October 2026

Reading and key facts
- National Bureau of Statistics: https://www.nbs.go.tz/ and the 2022 census portal https://sensa.nbs.go.tz/
  The 2022 population count is 61,741,120 for the United Republic, including Zanzibar. It is a dated census count, not a 2026 estimate.
- Parliament of Tanzania: https://www.bunge.go.tz/ — national institutions and the Bunge in Dodoma.
- US Office of the Historian: https://history.state.gov/countries/tanzania — Tanganyika independence on 9 December 1961 and the 26 April 1964 union with Zanzibar.
- BAKITA, National Kiswahili Council: https://www.bakita.go.tz/ — Kiswahili and its national role.
- World Bank Tanzania: https://www.worldbank.org/en/country/tanzania/overview — agriculture, economic activity and development context.
- Tanzania National Parks: https://www.tanzaniaparks.go.tz/ — parks, Kilimanjaro and conservation geography.
- UNESCO World Heritage: https://whc.unesco.org/en/statesparties/tz/ — Serengeti, Ngorongoro, Kilimanjaro, Stone Town, Kilwa/Songo Mnara and Kondoa.
- Nobel Prize: https://www.nobelprize.org/prizes/literature/2021/gurnah/facts/ — Abdulrazak Gurnah.
- Supplementary topic references: https://en.wikipedia.org/wiki/Tanzania and the topic-specific Wikipedia links in the guide.

Regional geometry
- Tanzania National Bureau of Statistics / UN OCHA ROSA, distributed through HDX and geoBoundaries gbHumanitarian TZA ADM1.
- Dataset: https://data.humdata.org/dataset/cod-ab-tza
- Pinned source: https://github.com/wmgeolab/geoBoundaries/blob/9469f09/releaseData/gbHumanitarian/TZA/ADM1/geoBoundaries-TZA-ADM1.geojson
- Licence: Creative Commons Attribution 3.0 IGO, https://creativecommons.org/licenses/by/3.0/igo/
- Source metadata represents 2018 and contains 31 regions, including Songwe (created in 2016). The older gbOpen and Natural Earth regional layers contain only 30 and are not used.
- Source names and IDs are retained in scripts/tanzania-map-source.geojson. Dar-es-salaam is displayed as Dar es Salaam. Regional identifiers use TZ-01 through TZ-31; Zanzibar's five regions retain their Swahili names.
- Region outlines are generalised at 0.002 degrees. These are learning maps, not surveying, legal boundary or land-ownership records. City and sight coordinates are curated representative locations.

Water geometry
- Natural Earth 1:10m lakes and marine geography, public domain: https://www.naturalearthdata.com/about/terms-of-use/
- Lake source: https://github.com/nvkelso/natural-earth-vector/blob/master/geojson/ne_10m_lakes.geojson
- Full lake polygons and Natural Earth IDs are retained in the offline source snapshot. Shared lakes are never clipped to Tanzania. The source Lake Malawi is displayed as Lake Nyasa / Malawi, without endorsing a disputed border. Shallow lakes use reference outlines and change seasonally.
- The complete named Natural Earth Indian Ocean area, minus continental and island land, is reused from the repository's reviewed Madagascar source snapshot. No artificial coastal box is added. Zoom out to see its full extent. The marine outline is hidden and is not a maritime ownership boundary.
- The waters deck is a selection of seven lakes and an ocean, not an inventory of Tanzanian waterways.

Photographs
- Ten locally served topic photographs reuse the credited Tanzania entries in src/lib/african-facts-heroes.json. Source pages, authors and licences are displayed with each image.
- The separate Stone Town waterfront banner reuses /images/speak/swahili/challenge.jpg:
  Diego Delso, CC BY-SA 4.0, https://commons.wikimedia.org/wiki/File:Puerto_de_Stone_Town,_Zanz%C3%ADbar,_Tanzania,_2024-05-31,_DD_02.jpg
- https://creativecommons.org/licenses/by-sa/4.0/