According to Japan's National Police Agency (NPA), as of 2011 there were more than 29,000 businesses connected to the sex industry (性風俗関連特殊営業, seifuzokukanrentokushueigyo)—10,000 more businesses than four years earlier in 2007. 
Kwa mujibu wa Mamlaka ya Polisi ya Taifa la Japan (NPA), kwa mwaka 2011 kulikuwa na zaidi ya biashara 29,000 zilizohusihwa na biashara ya ngono (性風俗関連特殊営業, seifuzokukanrentokushueigyo)— biashara 10,000 zaidi ya zile zilizokuwepo miaka minne iliyopita tangu 2007.