West Midlands Police’s report said 210 young people had been identified as victims or at risk of CSE between January and June 2014.
It was put together last year, but has just been released following a freedom of information request.
Last month, a separate report said the figures could actually be much higher.
Led by Stephen Rimmer, a former Home Office director general, and commissioned by seven local authorities in Birmingham and the Black Country, as well as the police, it found up to 500 children could be at risk.
David Jamieson, West Midlands Police and Crime Commissioner, said Mr Rimmer’s report included more up-to-date figures on victims, although both reports acknowledged abuse was usually “hidden” and the true figure could be much higher.
West Midlands Police published its report after it received an FOI request from the Birmingham Mail.