Tanzania's Gender, Institutions and Development database (GID Tanzania) provides policy makers, researchers and the public in general with key data at the national and subnational levels on gender-based discrimination in social institutions. Data help analyse women’s empowerment and understand gender gaps in key areas of development. Covering the 31 regions of the country, the GID Tanzania contains comprehensive information on social norms, attitudes and both perceived and actual practices that discriminate against women and girls.