| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Jobanda | city | Eastern Province | Sierra Leone | 7.8097222 | -11.3677778 | 465 | 7694 |
| Joborhu | city | Eastern Province | Sierra Leone | 8.3333333 | -11.4833333 | 1007 | 6830 |
| Jobu | city | Eastern Province | Sierra Leone | 8.2833333 | -10.5166667 | 980 | 7353 |
| Joe Fakai | city | Western Area | Sierra Leone | 8.3202778 | -13.0319444 | 6 | 8854 |
| Joe Town | city | Western Area | Sierra Leone | 8.3202778 | -13.0319444 | 6 | 8854 |
| Joe Town | city | Western Area | Sierra Leone | 8.2894444 | -13.03 | 95 | 6706 |
| Joei | city | Eastern Province | Sierra Leone | 8.1 | -10.8833333 | 859 | 7427 |
| John Obey | city | Western Area | Sierra Leone | 8.2333333 | -13.1666667 | 0 | 2350 |
| Johntop | city | Western Area | Sierra Leone | 8.3980556 | -13.0877778 | 32 | 8584 |
| Joi | city | Eastern Province | Sierra Leone | 7.65 | -11.3 | 488 | 7669 |
| Joioima | city | Eastern Province | Sierra Leone | 7.8791667 | -10.7877778 | 843 | 7434 |
| Jojohun | city | Southern Province | Sierra Leone | 8.3833333 | -11.7166667 | 354 | 5516 |
| Jojohun | city | Eastern Province | Sierra Leone | 8.4666667 | -11.4833333 | 1026 | 7686 |
| Jojoima | city | Eastern Province | Sierra Leone | 8.25 | -11.2 | 1069 | 7686 |
| Jojoima | city | Eastern Province | Sierra Leone | 7.8791667 | -10.7877778 | 843 | 7434 |
| Jokibu | city | Southern Province | Sierra Leone | 8.0666667 | -11.4666667 | 498 | 5521 |
| Jokibu | city | Eastern Province | Sierra Leone | 8.2 | -11.2166667 | 915 | 7687 |
| Jokibu | city | Eastern Province | Sierra Leone | 8.1333333 | -10.8166667 | 672 | 7425 |
| Jolohun | city | Southern Province | Sierra Leone | 8.1666667 | -12.0833333 | 150 | 4421 |
| Jolomei | city | Eastern Province | Sierra Leone | 7.8408333 | -11.4122222 | 498 | 7637 |
| Jolu | city | Eastern Province | Sierra Leone | 7.95 | -11.25 | 495 | 7691 |
| Jolu | city | Eastern Province | Sierra Leone | 8.1 | -11.1166667 | 908 | 7691 |
| Jombehun | city | Eastern Province | Sierra Leone | 7.5666667 | -11.0666667 | 462 | 7700 |
| Jombohun | city | Southern Province | Sierra Leone | 8.2333333 | -12.1 | 229 | 4418 |
| Jombohun | city | Southern Province | Sierra Leone | 7.7336111 | -11.6436111 | 433 | 5525 |
| Jombohun | city | Southern Province | Sierra Leone | 7.4 | -11.5666667 | 269 | 4373 |
| Jombohun | city | Eastern Province | Sierra Leone | 8.2333333 | -11.4166667 | 761 | 6347 |
| Jombohun | city | Southern Province | Sierra Leone | 8.0166667 | -11.35 | 423 | 6967 |
| Jombohun | city | Eastern Province | Sierra Leone | 7.5666667 | -11.0666667 | 462 | 7700 |
| Jombohun | city | Eastern Province | Sierra Leone | 8.3833333 | -11.0166667 | 938 | 19347 |
| Jombohun | city | Eastern Province | Sierra Leone | 7.85 | -10.95 | 869 | 7434 |
| Jombohun | city | Eastern Province | Sierra Leone | 8.25 | -10.5666667 | 997 | 7425 |
| Jombohun | city | Eastern Province | Sierra Leone | 8.2833333 | -10.55 | 1000 | 7308 |
| Jombosin | city | Southern Province | Sierra Leone | 7.15 | -11.5166667 | 193 | 4373 |
| Jomoihun | city | Eastern Province | Sierra Leone | 8.05 | -10.8666667 | 731 | 7425 |
| Jomu | city | Southern Province | Sierra Leone | 7.8666667 | -11.6333333 | 219 | 5521 |
| Jomu | city | Eastern Province | Sierra Leone | 7.9513889 | -11.0497222 | 751 | 7556 |
| Jonbaba | city | Southern Province | Sierra Leone | 6.9833333 | -11.4166667 | 239 | 3198 |
| Jongoba | city | Southern Province | Sierra Leone | 6.9833333 | -11.4166667 | 239 | 3198 |
| Jopowahun | city | Southern Province | Sierra Leone | 7.6166667 | -12.75 | 9 | 2800 |
| Jopowahun | city | Southern Province | Sierra Leone | 8.3 | -12.4 | 226 | 4446 |
| Jopowahun | city | Southern Province | Sierra Leone | 8.3166667 | -11.7833333 | 459 | 5520 |
| Jopowahun | city | Southern Province | Sierra Leone | 8.25 | -11.7 | 367 | 5521 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.0166667 | -11.3166667 | 413 | 7591 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.5666667 | -11.25 | 935 | 26674 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.4 | -11.1166667 | 1666 | 22999 |
| Jopowahun | city | Eastern Province | Sierra Leone | 7.7461111 | -11.0477778 | 862 | 7700 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.1333333 | -10.95 | 636 | 7517 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.3 | -10.9333333 | 921 | 7460 |
| Jopowahun | city | Eastern Province | Sierra Leone | 7.8166667 | -10.8333333 | 954 | 7434 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.25 | -10.8 | 964 | 7425 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.1333333 | -10.7666667 | 652 | 7425 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.0833333 | -10.6666667 | 748 | 7425 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.0166667 | -10.6333333 | 790 | 7200 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.3 | -10.6333333 | 974 | 7050 |
| Jopowahun | city | Eastern Province | Sierra Leone | 8.2833333 | -10.4666667 | 1131 | 7415 |
| Jopwahun | city | Eastern Province | Sierra Leone | 8.2833333 | -10.4666667 | 1131 | 7415 |
| Joru | city | Eastern Province | Sierra Leone | 7.7833333 | -11.3166667 | 442 | 7697 |
| Joru | city | Eastern Province | Sierra Leone | 7.95 | -11.25 | 495 | 7691 |
| Joru | city | Eastern Province | Sierra Leone | 7.6925 | -11.0572222 | 958 | 7700 |
| Jowi | city | Eastern Province | Sierra Leone | 7.65 | -11.3 | 488 | 7669 |
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