The British Security Industry Authority (BSIA) estimated there are up to 5.9 million closed-circuit television cameras in the country, including 750,000 in “sensitive locations” such as schools, hospitals and care homes.
The survey’s maximum estimate works out at one for every 11 people in the UK, although the BSIA said the most likely figure was 4.9 million cameras in total, or one for every 14 people.
Both projections were higher than previous estimates which ranged between 1.5 million and four million.
Simon Adcock, of the BSIA, said: “This study represents the most comprehensive and up to date study undertaken into the number of CCTV cameras in use in the UK.
“Because there is no single reliable source of data no number can ever be held as truly accurate however the middle of our range suggests that there are around five million cameras.”