Abstract: This bulletin provides estimates on the size and socio-demographic characteristics of the UK Armed Forces veteran population residing in Great Britain (GB) using responses provided in the 2017 Annual Population Survey (APS) administered by the Office for National Statistics (ONS). Summary figures of the veteran population and comparisons to the estimated non-veteran population residing in GB are provided. Main topics include: people characteristics; regional location; health including smoking status; employment status; education and accommodation (housing). The nonveteran population is defined as those aged 16+ who have not served in the UK Armed Forces or are currently serving. The APS veteran questions were not asked in Northern Ireland due to security concerns. In addition, the APS was only asked of those residing in households and therefore excluded individuals who were homeless or were living in communal establishments such as care homes or prisons.