| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Biama | city | Eastern Province | Sierra Leone | 7.85 | -11.4666667 | 485 | 6729 |
| Bibodu | city | Eastern Province | Sierra Leone | 8.5 | -10.8 | 1804 | 26513 |
| Biki | city | Northern Province | Sierra Leone | 8.5166667 | -12.5333333 | 209 | 8079 |
| Bikidu | city | Eastern Province | Sierra Leone | 8.6666667 | -10.85 | 1496 | 26667 |
| Bilafu | city | Northern Province | Sierra Leone | 8.7005556 | -12.2461111 | 160 | 5382 |
| Bilasilaia | city | Northern Province | Sierra Leone | 8.8833333 | -11.4333333 | 1450 | 2804 |
| Bilo | city | Southern Province | Sierra Leone | 7.4 | -12.55 | 55 | 726 |
| Bimaso | city | Southern Province | Sierra Leone | 7.05 | -11.5666667 | 147 | 4351 |
| Bimbaia | city | Northern Province | Sierra Leone | 8.6586111 | -13.2013889 | 3 | 8416 |
| Bimbaiya | city | Northern Province | Sierra Leone | 9.3833333 | -12.7333333 | 164 | 5871 |
| Bimbaya | city | Northern Province | Sierra Leone | 9.3833333 | -12.7333333 | 164 | 5871 |
| Bimbi | city | Southern Province | Sierra Leone | 7.5113889 | -12.5502778 | 3 | 3518 |
| Bina | city | Northern Province | Sierra Leone | 8.6333333 | -12.35 | 252 | 7704 |
| Bindalahun | city | Eastern Province | Sierra Leone | 7.4333333 | -11.2333333 | 505 | 7333 |
| Bindi | city | Northern Province | Sierra Leone | 9.9166667 | -11.45 | 1459 | 2374 |
| Bindika | city | Eastern Province | Sierra Leone | 8.2166667 | -11.2 | 928 | 7686 |
| Bindika | city | Eastern Province | Sierra Leone | 8.1666667 | -11.05 | 715 | 7687 |
| Bindohun | city | Southern Province | Sierra Leone | 7.4563889 | -12.3216667 | 52 | 3680 |
| Binkolo | city | Northern Province | Sierra Leone | 8.95 | -11.9833333 | 469 | 5180 |
| Binni | city | Western Area | Sierra Leone | 8.305 | -13.0580556 | 3 | 9101 |
| Biradu | city | Northern Province | Sierra Leone | 9.5333333 | -11.0166667 | 1496 | 2380 |
| Biribaia | city | Northern Province | Sierra Leone | 9.8166667 | -11.1666667 | 1630 | 2372 |
| Birimba | city | Northern Province | Sierra Leone | 9.3 | -10.7166667 | 1876 | 2248 |
| Birun | city | Northern Province | Sierra Leone | 9.0833333 | -13.0166667 | 127 | 7324 |
| Bisao | city | Southern Province | Sierra Leone | 7.85 | -12.4666667 | 157 | 4422 |
| Bisao | city | Southern Province | Sierra Leone | 7.6405556 | -12.1572222 | 180 | 3792 |
| Bisao | city | Southern Province | Sierra Leone | 7.4166667 | -11.8833333 | 180 | 4184 |
| Bisawo | city | Southern Province | Sierra Leone | 7.85 | -12.4666667 | 157 | 4422 |
| Bisawo | city | Southern Province | Sierra Leone | 7.6405556 | -12.1572222 | 180 | 3792 |
| Bisibu | city | Southern Province | Sierra Leone | 8.1166667 | -11.8666667 | 262 | 5477 |
| Bith | city | Southern Province | Sierra Leone | 7.8533333 | -12.7713889 | 72 | 4197 |
| Bitima | city | Southern Province | Sierra Leone | 8.15 | -11.6833333 | 456 | 5521 |
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