Abstract: The KONID Survey 2019 surveyed the significance of religion for social identities in a multi-thematic, country-comparative representative survey of the population in Germany and Switzerland aged 16 and older, paying particular attention to Muslim minorities. In both countries, more than 3,000 people were surveyed from spring to summer 2019. The KONID Survey 2019 surveyed no fewer than 21 possible social identities and placed them in their social and religious contexts.