This technical brief provides guidance on the recommended questions for inclusion in censuses in order to improve the quality and comparability of data on disability and international migration. It also encourages the inclusion of questions on age at first marriage, type of marriage, and registration status of the marriage in the 2020 round of census. 

This technical brief provides an overview on assessing the quality of data collected in a census. It details common methods and errors found in post-enumeration quality assessment. It also offers examples from countries that have embarked on a post-enumeration survey. 

This paper presents the four primary reasons why any population may be hard to count (HTC), four broad strategies for successfully addressing those challenges, and guidance on specific populations which have historically been HTC across national contexts. In doing so, it will help to produce higher quality census data and a culture in which those hardest to reach are prioritized.

This technical note is part of a series on Select Topics in International Censuses, exploring matters of interest to the international statistical community.

This paper provides information on internationally recognized standards on special procedures and protocols for the archiving and preservation of individual census records.

This technical note is part of a series on Select Topics in International Censuses, exploring matters of interest to the international statistical community.