| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Yabaia | city | Eastern Province | Sierra Leone | 8.8166667 | -11 | 1509 | 26657 |
| Yabaima | city | Southern Province | Sierra Leone | 7.8519444 | -11.5869444 | 347 | 5521 |
| Yabaima | city | Eastern Province | Sierra Leone | 7.64 | -11.4769444 | 442 | 6729 |
| Yabaima | city | Eastern Province | Sierra Leone | 7.6833333 | -11.1833333 | 495 | 7700 |
| Yabaima | city | Eastern Province | Sierra Leone | 7.8833333 | -11.1 | 475 | 7628 |
| Yabema | city | Eastern Province | Sierra Leone | 8.6 | -10.6833333 | 1482 | 26671 |
| Yadema | city | Eastern Province | Sierra Leone | 8.6166667 | -10.65 | 1597 | 26251 |
| Yadusinero | city | Eastern Province | Sierra Leone | 8.7333333 | -11.0666667 | 1200 | 26664 |
| Yagala | city | Northern Province | Sierra Leone | 9.55 | -11.5833333 | 1502 | 2380 |
| Yaganto | city | Northern Province | Sierra Leone | 9.8 | -11.4 | 1476 | 2380 |
| Yagbea | city | Eastern Province | Sierra Leone | 8.6333333 | -11.2 | 1459 | 26670 |
| Yago | city | Southern Province | Sierra Leone | 7.5711111 | -12.3375 | 32 | 3418 |
| Yahama | city | Eastern Province | Sierra Leone | 8.1666667 | -11.0333333 | 866 | 7686 |
| Yaiamba | city | Eastern Province | Sierra Leone | 8.8666667 | -10.6 | 1417 | 19630 |
| Yakagi | city | Southern Province | Sierra Leone | 7.8166667 | -12.7166667 | 32 | 4122 |
| Yakaji | city | Southern Province | Sierra Leone | 8 | -11.4333333 | 492 | 6048 |
| Yakala | city | Northern Province | Sierra Leone | 9.1333333 | -11.7166667 | 767 | 4020 |
| Yakama | city | Eastern Province | Sierra Leone | 8.1166667 | -10.95 | 616 | 7471 |
| Yakgban | city | Northern Province | Sierra Leone | 8.9333333 | -13 | 13 | 8852 |
| Yakobi | city | Northern Province | Sierra Leone | 9.6166667 | -11.6833333 | 1981 | 2380 |
| Yakoi | city | Eastern Province | Sierra Leone | 8.75 | -10.5333333 | 1148 | 17695 |
| Yakunda | city | Eastern Province | Sierra Leone | 8.75 | -11.3333333 | 1230 | 24895 |
| Yalefudia | city | Northern Province | Sierra Leone | 8.7441667 | -13.1327778 | 16 | 9548 |
| Yalia | city | Northern Province | Sierra Leone | 9.7166667 | -11.1666667 | 1519 | 2380 |
| Yalima | city | Eastern Province | Sierra Leone | 8.5166667 | -11.4 | 1000 | 11682 |
| Yaliwandu | city | Eastern Province | Sierra Leone | 9 | -10.6333333 | 2020 | 20768 |
| Yalo | city | Southern Province | Sierra Leone | 8.0833333 | -12.7666667 | 72 | 4424 |
| Yalu | city | Southern Province | Sierra Leone | 8.0833333 | -11.65 | 465 | 5521 |
| Yama | city | Northern Province | Sierra Leone | 9.0405556 | -13.0302778 | 108 | 8647 |
| Yama | city | Northern Province | Sierra Leone | 8.8833333 | -12.4666667 | 137 | 9442 |
| Yama | city | Eastern Province | Sierra Leone | 8.2166667 | -10.6 | 984 | 7425 |
| Yamadu | city | Eastern Province | Sierra Leone | 8.75 | -10.5666667 | 1492 | 24100 |
| Yamadu | city | Eastern Province | Sierra Leone | 8.65 | -10.5 | 1017 | 13163 |
| Yamanda | city | Northern Province | Sierra Leone | 9.4833333 | -11.8666667 | 997 | 2573 |
| Yamandu | city | Southern Province | Sierra Leone | 8.1833333 | -11.8 | 475 | 5446 |
| Yamandu | city | Southern Province | Sierra Leone | 7.9352778 | -11.4905556 | 314 | 6417 |
| Yamandu | city | Eastern Province | Sierra Leone | 8.3333333 | -11.3 | 918 | 7690 |
| Yamandu | city | Eastern Province | Sierra Leone | 8.5 | -10.8666667 | 1010 | 26484 |
| Yamanigbunti | city | Northern Province | Sierra Leone | 9.1333333 | -12.3833333 | 127 | 5171 |
| Yamankoro | city | Northern Province | Sierra Leone | 8.9833333 | -10.8833333 | 1486 | 13379 |
| Yamaro | city | Eastern Province | Sierra Leone | 8.5833333 | -10.6666667 | 997 | 26557 |
| Yamba Town | city | Western Area | Sierra Leone | 8.3180556 | -13.0269444 | 108 | 8854 |
| Yambalu | city | Eastern Province | Sierra Leone | 8.25 | -10.6833333 | 836 | 7403 |
| Yambama | city | Southern Province | Sierra Leone | 7.6544444 | -11.8952778 | 269 | 5507 |
| Yambama | city | Eastern Province | Sierra Leone | 8.2 | -11.25 | 1010 | 7687 |
| Yambama | city | Eastern Province | Sierra Leone | 8.6166667 | -10.7833333 | 1719 | 26671 |
| Yambaro | city | Eastern Province | Sierra Leone | 8.7333333 | -10.6666667 | 1551 | 26664 |
| Yameama | city | Southern Province | Sierra Leone | 7.6544444 | -11.8952778 | 269 | 5507 |
| Yamehun | city | Eastern Province | Sierra Leone | 8.2166667 | -10.4 | 1318 | 7425 |
| Yamfaka | city | Northern Province | Sierra Leone | 9.7166667 | -11.2666667 | 1532 | 2380 |
| Yamoama | city | Southern Province | Sierra Leone | 7.6544444 | -11.8952778 | 269 | 5507 |
| Yamoria | city | Northern Province | Sierra Leone | 9.6333333 | -10.9333333 | 1637 | 1948 |
| Yams Farm | city | Western Area | Sierra Leone | 8.3927778 | -13.1108333 | 42 | 8584 |
| Yana | city | Northern Province | Sierra Leone | 9.7333333 | -12.3166667 | 249 | 5166 |
| Yandahu | city | Western Area | Sierra Leone | 8.3375 | -13.0152778 | 124 | 9289 |
| Yandahun | city | Eastern Province | Sierra Leone | 8.3833333 | -10.8166667 | 1003 | 13896 |
| Yandahun | city | Eastern Province | Sierra Leone | 8.2833333 | -10.7833333 | 1059 | 7404 |
| Yandama | city | Southern Province | Sierra Leone | 7.7666667 | -11.75 | 318 | 5527 |
| Yandama | city | Southern Province | Sierra Leone | 8.05 | -11.45 | 505 | 5521 |
| Yandaworo | city | Eastern Province | Sierra Leone | 8.7 | -10.5333333 | 1427 | 21402 |
| Yandehu | city | Eastern Province | Sierra Leone | 8.05 | -11.3166667 | 459 | 7580 |
| Yandehun | city | Southern Province | Sierra Leone | 8.2833333 | -11.7 | 406 | 5521 |
| Yandehun | city | Southern Province | Sierra Leone | 7.6461111 | -11.6466667 | 485 | 5252 |
| Yandehun | city | Southern Province | Sierra Leone | 8.4 | -11.6333333 | 1072 | 5519 |
| Yandehun | city | Eastern Province | Sierra Leone | 8.1666667 | -11.1166667 | 997 | 7687 |
| Yandehun | city | Eastern Province | Sierra Leone | 8.4333333 | -11.0333333 | 1479 | 25193 |
| Yandema | city | Eastern Province | Sierra Leone | 8.5666667 | -11.1 | 1443 | 26674 |
| Yandihun | city | Southern Province | Sierra Leone | 8.3833333 | -12.8166667 | 98 | 7430 |
| Yandihun | city | Eastern Province | Sierra Leone | 8.3833333 | -11.5 | 1007 | 7678 |
| Yandohun | city | Eastern Province | Sierra Leone | 8.0666667 | -10.85 | 715 | 7425 |
| Yandu | city | Southern Province | Sierra Leone | 8.3416667 | -12.0580556 | 183 | 4772 |
| Yandu | city | Eastern Province | Sierra Leone | 8.6666667 | -10.5833333 | 1391 | 26093 |
| Yandugu | city | Northern Province | Sierra Leone | 8.9666667 | -11.4833333 | 1341 | 3522 |
| Yangahun | city | Southern Province | Sierra Leone | 7.15 | -11.5 | 223 | 4373 |
| Yangahun | city | Eastern Province | Sierra Leone | 8.2333333 | -11.0833333 | 879 | 7686 |
| Yangahun | city | Eastern Province | Sierra Leone | 8.05 | -10.9833333 | 557 | 7522 |
| Yangisei | city | Southern Province | Sierra Leone | 7.6086111 | -12.5580556 | 118 | 2359 |
| Yangua | city | Northern Province | Sierra Leone | 9.8666667 | -12.3166667 | 541 | 5003 |
| Yanihun | city | Southern Province | Sierra Leone | 7.6461111 | -11.6466667 | 485 | 5252 |
| Yanka | city | Northern Province | Sierra Leone | 8.4322222 | -12.4763889 | 209 | 5464 |
| Yanka | city | Northern Province | Sierra Leone | 8.8 | -12.3 | 272 | 5730 |
| Yankabu | city | Southern Province | Sierra Leone | 8.0333333 | -11.5166667 | 469 | 5521 |
| Yankalol | city | Northern Province | Sierra Leone | 9.2 | -12.2833333 | 265 | 5171 |
| Yankambu | city | Northern Province | Sierra Leone | 9.2833333 | -12.65 | 249 | 8938 |
| Yankone | city | Northern Province | Sierra Leone | 9.5333333 | -12.55 | 249 | 8794 |
| Yanleia | city | Northern Province | Sierra Leone | 9.0833333 | -11.0166667 | 1440 | 13205 |
| Yanwulia | city | Northern Province | Sierra Leone | 9.2166667 | -11.4666667 | 1473 | 2624 |
| Yapoma | city | Southern Province | Sierra Leone | 7.875 | -12.6386111 | 68 | 4424 |
| Yara | city | Northern Province | Sierra Leone | 9.25 | -11.5833333 | 1814 | 2426 |
| Yaradu | city | Eastern Province | Sierra Leone | 8.6666667 | -10.9833333 | 1423 | 26667 |
| Yaradu | city | Eastern Province | Sierra Leone | 8.7833333 | -10.9833333 | 1240 | 26660 |
| Yaradu | city | Eastern Province | Sierra Leone | 8.55 | -10.7 | 1377 | 26557 |
| Yaradu | city | Eastern Province | Sierra Leone | 8.75 | -10.5833333 | 1496 | 24100 |
| Yaraia | city | Eastern Province | Sierra Leone | 8.9333333 | -11.1333333 | 1482 | 22698 |
| Yarakonko | city | Northern Province | Sierra Leone | 8.9666667 | -10.7333333 | 2391 | 10274 |
| Yarando | city | Northern Province | Sierra Leone | 9.4 | -10.8333333 | 1929 | 2059 |
| Yarandu | city | Eastern Province | Sierra Leone | 8.55 | -10.7 | 1377 | 26557 |
| Yarawadogu | city | Northern Province | Sierra Leone | 9.05 | -10.65 | 1975 | 4516 |
| Yarawadugu | city | Northern Province | Sierra Leone | 9.05 | -10.65 | 1975 | 4516 |
| Yarawaia | city | Northern Province | Sierra Leone | 8.9166667 | -11.7666667 | 531 | 5451 |
| Yarbuma | city | Eastern Province | Sierra Leone | 8.3333333 | -10.95 | 997 | 7460 |
| Yase | city | Northern Province | Sierra Leone | 8.9166667 | -11.8333333 | 679 | 5451 |
| Yasi | city | Northern Province | Sierra Leone | 9.0333333 | -11.85 | 492 | 5324 |
| Yataia | city | Northern Province | Sierra Leone | 9.5666667 | -11.6 | 1499 | 2380 |
| Yawaju | city | Southern Province | Sierra Leone | 7.7261111 | -11.4652778 | 508 | 6745 |
| Yawando | city | Eastern Province | Sierra Leone | 8.85 | -10.6 | 1443 | 19630 |
| Yawe | city | Southern Province | Sierra Leone | 7.4075 | -11.7030556 | 285 | 4373 |
| Yawe | city | Southern Province | Sierra Leone | 8.1 | -11.6 | 498 | 5521 |
| Yawe | city | Eastern Province | Sierra Leone | 7.8333333 | -10.95 | 666 | 7457 |
| Yawei | city | Southern Province | Sierra Leone | 7.4841667 | -11.8991667 | 226 | 4248 |
| Yawei | city | Southern Province | Sierra Leone | 7.4075 | -11.7030556 | 285 | 4373 |
| Yawema | city | Southern Province | Sierra Leone | 7.9691667 | -12.4152778 | 209 | 4424 |
| Yawema | city | Southern Province | Sierra Leone | 8.35 | -11.8 | 259 | 5511 |
| Yawuema | city | Eastern Province | Sierra Leone | 7.8566667 | -11.3358333 | 501 | 7691 |
| Yawundo | city | Eastern Province | Sierra Leone | 8.85 | -10.6 | 1443 | 19630 |
| Yayima | city | Eastern Province | Sierra Leone | 8.9833333 | -10.9666667 | 1745 | 25266 |
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