| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Buchannan | city | Mississippi | United States | 34.34 | -89.10 | 390 | |
| Buckatunna | city | Mississippi | United States | 31.54 | -88.53 | 157 | |
| Buckhorn | city | Mississippi | United States | 34.09 | -89.16 | 370 | |
| Buckleytown | city | Mississippi | United States | 32.30 | -89.36 | 830 | |
| Bud's Mobile Park | city | Mississippi | United States | 30.43 | -88.98 | 9 | |
| Bude | city | Mississippi | United States | 31.46 | -90.85 | 246 | |
| Buena Vista | city | Mississippi | United States | 34.67 | -88.92 | 830 | |
| Buena Vista | city | Mississippi | United States | 33.88 | -88.84 | 337 | |
| Buena Vista (historical) | city | Mississippi | United States | 31.82 | -91.33 | 55 | |
| Buena Vista Lakes | city | Mississippi | United States | 34.73 | -90.01 | 278 | |
| Bugh | city | Mississippi | United States | 33.37 | -89.00 | 321 | |
| Bulah | city | Mississippi | United States | 30.49 | -89.07 | 52 | |
| Bunker Hill | city | Mississippi | United States | 31.81 | -89.51 | 246 | |
| Bunker Hill | city | Mississippi | United States | 31.39 | -89.80 | 249 | |
| Bunker Hill | city | Mississippi | United States | 33.55 | -88.40 | 252 | |
| Bunkley | city | Mississippi | United States | 31.36 | -90.99 | 173 | |
| Burdette | city | Mississippi | United States | 33.35 | -90.91 | 101 | |
| Burgess | city | Mississippi | United States | 34.34 | -89.67 | 387 | |
| Burke Landing | city | Mississippi | United States | 34.27 | -90.79 | 160 | |
| Burkettsville (historical) | city | Mississippi | United States | 33.16 | -89.62 | 400 | |
| Burnell | city | Mississippi | United States | 31.81 | -90.75 | 242 | |
| Burnham (historical) | city | Mississippi | United States | 32.14 | -89.86 | 351 | |
| Burns | city | Mississippi | United States | 32.14 | -89.55 | 830 | |
| Burns (historical) | city | Mississippi | United States | 32.11 | -89.25 | 400 | |
| Burnside | city | Mississippi | United States | 32.85 | -89.10 | 380 | |
| Burnsville | city | Mississippi | United States | 34.84 | -88.31 | 830 | |
| Burroughs Mobile Park | city | Mississippi | United States | 30.35 | -88.53 | 9 | |
| Burt | city | Mississippi | United States | 34.50 | -89.33 | 337 | |
| Burton | city | Mississippi | United States | 34.64 | -88.34 | 830 | |
| Burtonton (historical) | city | Mississippi | United States | 31.99 | -90.70 | 193 | |
| Busey | city | Mississippi | United States | 33.56 | -90.86 | 108 | |
| Bush | city | Mississippi | United States | 31.86 | -89.99 | 357 | |
| Busy Corner | city | Mississippi | United States | 31.28 | -90.86 | 396 | |
| Butler | city | Mississippi | United States | 33.23 | -90.30 | 111 | |
| Buttahatchie (historical) | city | Mississippi | United States | 33.81 | -88.28 | 321 | |
| Buxton | city | Mississippi | United States | 34.55 | -90.20 | 193 |