The General Report on Population Distribution by Administrative Units is the first of a series of publications planned for the 2012 PHC. The main purpose of the report is to give aggregated totals of population by sex. The report also provide number of households, average household size, population densities, average annual inter-censal growth rates and sex ratios. Levels of aggregation are national, regional, district council and ward/shehia.
The 2012 PHC revealed that, the population of Tanzania has grown from 12,313,469 persons in the 1967 Census to 44,928,923 persons counted in 2012. Dar es Salaam accounts for 10 percent of the total Tanzania Mainland population