Almost nine million Brits have yet to go online, new figures from the Office of National Statistics (ONS) has revealed.
Just over 8.7 million adults have never used the internet, with age, disability and even gender playing a role in whether or not people have been online.
Nearly half of the UK's offline population are disabled, said the ONS, while two-thirds are aged over 65. This compared to less than 1% of 16-24 year olds.
An ONS spokesperson said: "These figures also show that the elderly and disabled are among the least likely to use the internet."
Where you live also affects your likelihood of having been online. "These figures show the big differences in the proportions of people accessing the internet across the country. The proportion of people never having been online in Northern Ireland is more than double that in London or the South East," added the ONS.
However, the number of people who have never used the internet has dropped since the government's drive to get more people online has stepped up pace.
The Race Online 2012 campaign, which aims to get as many Brits online as possible by the time the Olympics reaches London, says that 1.3 million more people have begun using the internet since 2009.
And the new stats also show that more than 82% of people have been online - while Race Online 2012 says that 30 million Brits use the internet every day.