These rankings are pointless. They lump African Americans with African immigrants, which really skews things. Had the person who is responsible for the rankings actually took the time to look at Census data, s/he would have provided everyone with something worthwhile to look at.
For example, according to the latest Census estimates (2014), Minnesota's black population was 307,850; 94,380 was foreign born (Africa or East African).
Wisconsin's black population was 357,934 and only 9,761 were foreign born (Africa or East African).
S/he could have then broken down the numbers for educational attainment, poverty levels, unemployment, etc., by ethnic group. Had s/he done so, most would realize that Minnesota's black communities are facing problems that other states black communities aren't.
Instead, s/he took the easy route and led readers to believe that certain places are full of racists. Here are numbers for a few other states:
Illinois: black alone, 1,812,812; foreign born, 55,864
Indiana: black alone, 605,194; foreign born, 16,852
Michigan: black alone, 1,363,958; foreign born, 28,854
Missouri: black alone, 703,873; foreign born, 19,922
Ohio: black alone, 1,402,190; foreign born, 58,393