| County | Black Percentage of Total Population |
| Jefferson |  85 |
| Claiborne | 84 |
| Holmes | 83 |
| Coahoma | 75 |
| Humphreys | 75 |
| Tunica | 74 |
| Leflore | 73 |
| Sunflower | 73 |
| Noxubee | 72 |
| Washington | 71 |
| Sharkey | 71 |
| Wilkinson | 70 |
| Hinds | 70 |
| Quitman | 69 |
| Bolivar | 65 |
| Issaquena | 64 |
| Kemper | 60 |
| Jefferson Davis | 60 |
| Clay | 59 |
| Yazoo | 57 |
| Tallahatchie | 56 |
| Adams | 54 |
| Jasper | 53 |
| Pike | 53 |
| Copiah | 51 |
| Panola | 49 |
| Warren | 48 |
| Marshall | 48 |
| Winston | 46 |
| Montgomery | 46 |
| Walthall | 44 |
| Lowndes | 44 |
| Lauderdale | 43 |
| Chickasaw | 43 |
| Attala | 42 |
| Grenada | 42 |
| Amite | 41 |
| Leake | 41 |
| Wayne | 39 |
| Madison | 39 |
| Scott | 38 |
| Yalobusha | 38 |
| Benton | 37 |
| Oktibbeha | 37 |
| Forrest | 37 |
| Covington | 36 |
| Simpson | 36 |
| Franklin | 35 |
| Clarke | 35 |
| Carroll | 34 |
| Marion | 33 |
| Lawrence | 31 |
| Monroe | 31 |
| Lincoln | 31 |
| Tate | 31 |
| Newton | 30 |
| Choctaw | 30 |
| Jones | 29 |
| Calhoun | 29 |
| Lee | 28 |
| Greene | 27 |
| Lafayette | 24 |
| Smith | 24 |
| Harrison | 23 |
| DeSoto | 23 |
| Jackson | 22 |
| Neshoba | 21 |
| Perry | 20 |
| Lamar | 20 |
| Webster | 20 |
| Stone | 20 |
| Rankin | 20 |
| Tippah | 16 |
| Union | 15 |
| Pontotoc | 15 |
| Prentiss | 14 |
| Pearl River | 13 |
| Alcorn | 12 |
| George | 8 |
| Hancock | 8 |
| Itawamba | 6 |
| Tishomingo | 3 |