Description

GEO_ TZ1991_2017 reports the region of Tanzania where the respondent was interviewed. The variable is integrated to yield units with consistent boundaries across samples.

Labels identify the modern geographic units (zones) contained in each integrated region. Each sample also has its own non-integrated geography variable. The 1996, 1999, 2004, 2010, 2015, and 2017 samples have greater geographic detail available in their sample-specific variables. An additional integrated variable, GEO_TZ1996_2017, does not include the 1991 Tanzania sample and is harmonized for different geographic units (regions).

An integrated GIS map (in shapefile format) for Tanzania can be downloaded here.

Comparability

In 1991, Tanzania had 6 zones that later split into 22 regions in 1996 and 1999:

• Dar Es Salaam, Morogoro, Pemba, Pwani, Tanga, and Zanzibar created from Coastal
• Arusha and Kilimanjaro created from Northern Highlands
• Geita, Kagera, Kigoma, Mara, Mwanza, Shinyanga, Simiyu, Tabora created from Lake
• Dodoma and Sangida created from Central
• Iringa, Myeba, Nijombe, Katavi, and Rukwa created from Southern Highlands
• Lindi, Mtwara, and Ruvuma created from South

In the 1996 and 1999 samples, Tanzania had 22 regions that later split into 31 regions:

• Manyara created from Arusha in 2002
• Njombe was formed from part of Iringa in 2012.
• Katavi was formed from part of Rukwa in 2012.
• Geita was formed from parts of Shinyanga, Kagera, and Mwanza in 2012.
• Simiyu was formed from parts of Shinyanga and Mwanza in 2012.
• Pemba North created from Pemba
• Pemba South created from Pemba
• Town West created from Zanzibar
• Zanzibar North created from Zanzibar
• Zanzibar South created from Zanzibar
• Songwe was formed from part of Mbeya in 2016

In 1996 and 1999 Tanzania surveys, Pemba and Rest of Zanzibar (Unguja) comprise Zanzibar, and Pwani is identified as Coast.

The 2017 survey corresponds to a Malaria Indicators Survey (MIS).

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