These are the inverse of Battleground Counties. Coincidentally I grew up in County #4 (PG 4 LIFE):
Following are the 10 counties or county equivalents where President Barack Obama took his largest share of the vote. Most are black-majority areas that historically are staunchly Democratic and were eager to re-elect Obama, the first black president in the nation’s history.
1. Shannon, South Dakota (93%): included within the Pine Ridge Indian Reservation in the southwestern part of the state.
2. Bronx, New York (91%): about one in nine residents in New York City’s northernmost borough is non-Hispanic white. Bronx has been the most pro-Democratic New York City borough in five straight presidential elections.
3. Petersburg, Virginia (90%): a black-majority area about 25 miles south of Richmond.
4. Prince George’s, Maryland (90%): a black-majority area that abuts Washington, D.C.
5. Jefferson, Mississippi (89%): a sparsely populated, black-majority area by the Mississippi River south of Vicksburg.
6. Claiborne, Mississippi (88%): a black-majority county that abuts Jefferson to the north.
7. Baltimore city, Maryland (87%): more than three in five residents are black in Maryland’s biggest city.
8. Macon, Alabama (87%): a black-majority area that includes Tuskegee, the birthplace of Rosa Parks and the site of a university founded by Booker T. Washington.
9. Menominee, Wisconsin (86%): includes the Menominee Indian Tribe about 45 miles northwest of Green Bay.
10. Starr, Texas (86%): about 96 percent of residents are Hispanic in this low-income area on the Mexican border in south Texas.