The Database on Older Persons in Collective Living Quarters 2022 is a unique dataset that provides harmonized and comparable data on patterns and trends of older persons aged 65 or over residing in collective living quarters (also called as “group quarters”). Data on collective living quarters (or non-household living arrangements) are still limited. The main source for non-household living arrangement data are population and housing censuses. The estimates are based on 347 unique data sources from 135 countries or areas, representing approximately 77 per cent of persons aged 65 or over globally (circa 2010), with reference dates ranging from 1960 to 2018.