Censuses provide population numbers, household or family size and composition, and information on sex and age distribution. They often include other demographic, economic, and health-related topics as well. The 2001 Bangladesh de facto census collected data through face-to-face interviews. The census day was January 23, 2001. A 10% self-weighted sample of households from the census (12,442,115 individuals) is available through IPUMS International at the University of Minnesota. Refer to the IPUMS website for guidelines on citing database versions.