http://www.cnn.com/2010/CRIME/11/08/us.child.prostitution/index.html?hpt=T2
"The city where the most children were recovered was Seattle, Washington, with 16, said FBI Special Agent Jason Pack. Seven pimps were arrested there, he added.
Following Seattle were Tacoma, Washington, and Sacramento, California, each with seven child prostitutes retrieved by authorities, Pack said. Two pimps were arrested in Tacoma and three in Sacramento, he said."