Maryland’s African American Prison Population Tops In Nation Bremante Bryant November 6, 2019 at 2:28 pm in WHUR Tweet A new report claims Maryland’s prison population holds more African Americans than any other state in the nation. The Justice Policy report says more than 70-percent of Maryland’s prison population was made up of African Americans in 2018. That rate surpasses Mississippi, South Carolina and Georgia. The national average of a state’s prison population is 32-percent black. Tags: African Americans in Maryland prisons, black prison population in U.S., Maryland prisons