Here are some stats from six years ago, charting the number of sex offenders in prison, compared with the ethnic profile of the population. They should be updated soon. Probation and prisons collect race and ethnicity data on every offender. From experience, I supervised and treated many, many more white British paedophiles than from other racial backgrounds, and organised paedophile rings, pimps, gang members abusing and attacking girlfriends of rivals, priests, teachers, scout leaders and individual sex offenders, were more often white.
Taking into account the willingness of police to investigate black alleged sex offenders in the time period on this table, one would expect to see a disproportionately high number of black sex offenders to white sex offenders, who were more likely to go undetected, but the overwhelmng majority are white. However, it's still white paedophiles who are more likely to avoid prosecution so far.
Ethnic Profile of the number of male sex offenders in Prisons of England and Wales – May 2007 (H. M. Prison Service 2007)
Ethnic Group and number of prisoners as a percentage of sex offender population
Population of England and Wales by Ethnicity (National Statistics 2003)
Ethnicity and Percentage of population England and Wales
Asian or Asian British
Black or Black British
Other ethnic groups