According to the FBI there were over 500,000 disorderly conduct arrests in 2009.
The FBI estimates that in 2009 there were 1,663,582 drug arrests in the United States, 45.6% of which (758,593) were for possession of marijuana. In addition, there were 8,067 gambling arrests, 26,380 vagrancy arrests, 471,727 drunkenness arrests, 518,374 disorderly conduct arrests, and 89,733 curfew and loitering arrests.
The racial disparity in many of these categories is striking: 36.7% of the disorderly conduct arrests and 44.7 % of the vagrancy arrests were of non-white persons.
Information taken from:
"Diverting and Reclassifying Misdemeanors
Could Save $1 Billion per Year"
Reducing the Need For and Cost of Appointed Counsel
By Robert C. Boruchowitz, December 2010