Black urban inner cities are rife with crime and poverty. Click on the link for a listing of cities. Take a look at those like Chicago, DC, New Orleans,Houston, Philidelpia, Detroit, Cleveland, Oakland, St. Louis etc. These numbers are from Law Enforcement, Courts, and Prisons U.S. Census Bureau, Statistical Abstract of the United States: 2012 Cut and paste the URL to see full data
The data is there, go for it. www.census.gov/compendia/statab/2012/tables/12s0309.pdf
Past this link for the top ten dangerous cities.
http://www.forbes.com/pictures/mlj45jggj/1-detroit/
Additional note: The poverty in most cases is a function of the culture or rather break down of culture. Welfare has by and large destroyed the black family and its new culture in the inner cities is dependence on the government. Dependence breds crime and more dependence.