Tanzania’s administrative structure has regions, districts, wards, and villages (in order from largest to smallest; the census uses enumeration areas roughly but not universally equivalent to wards). These are the shapefiles for these wards.
By some estimates, up to 60% of rural Tanzanians live without access to clean drinking water. These are the locations and statuses of 70,000+ water points, including metadata such as population served, quality, etc.
Crude birth rate indicates the number of live births occurring during the year, per 1,000 population estimated at midyear. Subtracting the crude death rate from the crude birth rate provides the rate of natural increase, which is equal to the rate of population change in the absence of migration.
(1) United Nations Population Division. World Population Prospects, (2) United Nations Statistical Division. Population and Vital Statistics Report (various years), (3) Census reports and other statistical publications from national statistical offices, (4) Eurostat: Demographic Statistics, (5) Secretariat of the Pacific Community: Statistics and Demography Programme, and (6) U.S. Census Bureau: International Database.