| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Black Bayou | city | Mississippi | United States | 33.82 | -90.28 | 127 | |
| Black Bayou Junction | city | Mississippi | United States | 33.80 | -90.27 | 134 | |
| Black Hawk | city | Mississippi | United States | 33.33 | -90.01 | 347 | |
| Black Jack | city | Mississippi | United States | 34.88 | -89.08 | 830 | |
| Black Jack | city | Mississippi | United States | 33.44 | -88.73 | 318 | |
| Blackland | city | Mississippi | United States | 34.64 | -88.67 | 416 | |
| Blackwater | city | Mississippi | United States | 32.62 | -88.68 | 252 | |
| Blackwater | city | Mississippi | United States | 34.56 | -89.60 | 324 | |
| Blaine | city | Mississippi | United States | 33.61 | -90.52 | 118 | |
| Blair | city | Mississippi | United States | 34.45 | -88.74 | 360 | |
| Blairs Trailer Park | city | Mississippi | United States | 30.40 | -88.96 | 29 | |
| Blakely | city | Mississippi | United States | 32.44 | -90.82 | 98 | |
| Blakley Creek | city | Mississippi | United States | 31.74 | -89.57 | 374 | |
| Blanton | city | Mississippi | United States | 32.75 | -90.93 | 98 | |
| Blissdale | city | Mississippi | United States | 33.09 | -90.22 | 295 | |
| Blodgett | city | Mississippi | United States | 31.46 | -88.99 | 249 | |
| Bloody Springs | city | Mississippi | United States | 34.59 | -88.14 | 830 | |
| Bloomfield | city | Mississippi | United States | 32.79 | -88.74 | 400 | |
| Bloomfield | city | Mississippi | United States | 32.73 | -89.02 | 830 | |
| Blounts Store | city | Mississippi | United States | 32.41 | -89.04 | 403 | |
| Blue Hill | city | Mississippi | United States | 31.76 | -90.86 | 324 | |
| Blue Lake | city | Mississippi | United States | 33.90 | -90.43 | 137 | |
| Blue Mountain | city | Mississippi | United States | 34.67 | -89.03 | 830 | |
| Blue Ridge | city | Mississippi | United States | 31.90 | -89.15 | 400 | |
| Blue Springs | city | Mississippi | United States | 34.40 | -88.87 | 413 | |
| Blueberry Hill | city | Mississippi | United States | 31.40 | -90.44 | 830 | |
| Bluecutt Estates | city | Mississippi | United States | 33.53 | -88.43 | 196 | |
| Bluff | city | Mississippi | United States | 34.61 | -88.96 | 403 | |
| Bluff Creek Mobile Home Park | city | Mississippi | United States | 30.47 | -88.67 | 26 | |
| Bluff Springs | city | Mississippi | United States | 34.35 | -89.81 | 318 | |
| Bluff Springs | city | Mississippi | United States | 32.78 | -88.82 | 830 | |
| Bluff Springs (historical) | city | Mississippi | United States | 33.03 | -89.73 | 282 | |
| Blythe Crossing | city | Mississippi | United States | 34.79 | -88.17 | 830 | |
| Blythes Chapel | city | Mississippi | United States | 34.59 | -88.46 | 374 |