A major new analysis has assessed how man lesbian, gay and bisexual people there are in the UK for the first time.
New research from Public Health England (PHE) also found younger men were the most most likely to LGB, especially those of mixed ethnicity.
There are more than 1.3 million lesbian, gay or bisexual people in England, making up 2.5 percent of the population.
London, Manchester and Brighton had the highest population of people self-identifying as lesbian, gay or bisexual – with almost 10 percent of the population in Brighton and Hove.
The survey found that in Greater Manchester 3.6 percent of people where thought to be LGB.
That figure rose to 5.1 percent of people in Greater London.
The report looked at 15 different surveys of adults across the country, before cross-referencing the data with the number of people in the mid-2014 census.
Results suggested a total of 1,358,848 LGB living across England, although if people who responded ‘rather not say’ to surveys were included in the data, this figure would rise to more than three million.
Researchers say it is the first ever ‘robust’ estimate of the gay and bisexual population in England and that the data will be used to help understand and better their provisions for the health and wellbeing of LGB people.
PHE added there was “evidence to suggest that minority sexual orientation groups can experience high prevalence of poor mental health and low wellbeing.
They added further work is needed to include transgender and intersex people.