According to the 2021 Census, there were more than 21,000 people who had previously served in the UK armed forces in East Sussex in 2021, 4.6% of the population aged 16 years and over.
East Sussex has the 4th highest proportion of UK armed forces veterans per total population in the South East, behind Hampshire (6.4%), the Isle of Wight (6.0%) and Portsmouth (5.4%).
For more details read the Veterans briefing note