The figures, released following a Freedom of Information (FOI) request by the Liberal Democrats, reveal 298 people aged between 10 and 17 have their DNA profile recorded each day.
In total more than one million children are on the national database.
The Metropolitan Police alone has collected DNA from 144,487 young people over the past decade.
"Storing the DNA of thousands of innocent young people as young as 10 is unlikely to solve our crime problems, but is a costly way of stigmatising young people," Jo Shaw, Lib Dem parliamentary campaigner for Holborn & St Pancras, said.
Terri Dowty, policy director at Action on Rights for Children, said she was not surprised by the figures.
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