Offense data by region
Table 3, "Crime in the United States, Offense and Population Percent Distribution by Region, 2007"
Table 4, "Crime in the United States, by Region, Geographic Division, and State, 2006—2007"

Regional Crime Rates 2007, Violent and Property Crimes per 100,000 Inhabitants

Other data by region:
Clearance data by region
Arrest data by region
Police employee data by region