| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Isabe | city | | Tanzania, United Rep. of | -4.6833333 | 35.8 | 5052 | 4653 |
| Isagenghe | city | | Tanzania, United Rep. of | -3.2666667 | 33.85 | 4412 | 9805 |
| Isagenhe | city | | Tanzania, United Rep. of | -3.2666667 | 33.85 | 4412 | 9805 |
| Isaka | city | | Tanzania, United Rep. of | -3.9 | 32.9333333 | 3930 | 6522 |
| Isaka | city | | Tanzania, United Rep. of | -7.2666667 | 36.1333333 | 3146 | 3277 |
| Isalala | city | | Tanzania, United Rep. of | -9.0333333 | 32.75 | 3959 | 6833 |
| Isalamagasi | city | | Tanzania, United Rep. of | -3.5333333 | 33.1333333 | 3897 | 10626 |
| Isambwa | city | | Tanzania, United Rep. of | -7.3 | 33.7166667 | 4829 | 1324 |
| Isanga | city | | Tanzania, United Rep. of | -3.8666667 | 32.1166667 | 4015 | 5045 |
| Isanga | city | | Tanzania, United Rep. of | -3.25 | 33.6166667 | 4084 | 9855 |
| Isanga | city | | Tanzania, United Rep. of | -2.8333333 | 33.9333333 | 4206 | 6823 |
| Isanga | city | | Tanzania, United Rep. of | -7.4833333 | 34.0166667 | 4019 | 1010 |
| Isanga | city | | Tanzania, United Rep. of | -7.4 | 34.25 | 4058 | 2362 |
| Isangate | city | | Tanzania, United Rep. of | -9.0666667 | 33.4166667 | 4950 | 10491 |
| Isangati | city | | Tanzania, United Rep. of | -9.0666667 | 33.4166667 | 4950 | 10491 |
| Isanghamwele | city | | Tanzania, United Rep. of | -2.9666667 | 33.8666667 | 4389 | 6919 |
| Isangwa | city | | Tanzania, United Rep. of | -7.7166667 | 31.6 | 3359 | 5449 |
| Isanza | city | | Tanzania, United Rep. of | -6.35 | 35.2166667 | 2867 | 1507 |
| Isasi | city | | Tanzania, United Rep. of | -7.2 | 35.7333333 | 2490 | 3281 |
| Isauke | city | | Tanzania, United Rep. of | -5.9833333 | 37.75 | 2496 | 5281 |
| Isawa | city | | Tanzania, United Rep. of | -6.6333333 | 34.15 | 4199 | 854 |
| Isegehe | city | | Tanzania, United Rep. of | -3.9166667 | 32.7666667 | 4025 | 5630 |
| Isegehe | city | | Tanzania, United Rep. of | -3.8 | 33 | 3923 | 10552 |
| Iseke | city | | Tanzania, United Rep. of | -6.4166667 | 35.0166667 | 3625 | 854 |
| Iselamagazi | city | | Tanzania, United Rep. of | -3.5333333 | 33.1333333 | 3897 | 10626 |
| Iselomagazi | city | | Tanzania, United Rep. of | -3.5333333 | 33.1333333 | 3897 | 10626 |
| Iseme | city | | Tanzania, United Rep. of | -3.4333333 | 32.8833333 | 3907 | 10626 |
| Isenegeza | city | | Tanzania, United Rep. of | -4.9166667 | 33.3 | 3930 | 1755 |
| Isenga | city | | Tanzania, United Rep. of | -5.15 | 32.65 | 3756 | 1755 |
| Isenga | city | | Tanzania, United Rep. of | -7.4166667 | 34.5833333 | 3982 | 3276 |
| Isengeja | city | | Tanzania, United Rep. of | -3.8666667 | 32.85 | 3838 | 5045 |
| Isenye | city | | Tanzania, United Rep. of | -2 | 34.3333333 | 4104 | 2556 |
| Isenyela | city | | Tanzania, United Rep. of | -8.6 | 33.5 | 5072 | 1390 |
| Isenyi | city | | Tanzania, United Rep. of | -8.0833333 | 35.85 | 5652 | 3276 |
| Iseramagazi | city | | Tanzania, United Rep. of | -4.6666667 | 32.15 | 3835 | 1820 |
| Isere | city | | Tanzania, United Rep. of | -7.3666667 | 35.4833333 | 2552 | 3276 |
| Isere | city | | Tanzania, United Rep. of | -7.6666667 | 36.0333333 | 4583 | 3276 |
| Iseremagazi | city | | Tanzania, United Rep. of | -4.6666667 | 32.15 | 3835 | 1820 |
| Ishingisha | city | | Tanzania, United Rep. of | -2.7333333 | 33.2333333 | 3950 | 14834 |
| Ishozi | city | Kagera Region | Tanzania, United Rep. of | -1.1627778 | 31.7683333 | 3999 | 11522 |
| Isikisia | city | | Tanzania, United Rep. of | -4.9 | 33.1 | 4078 | 1755 |
| Isimbila | city | | Tanzania, United Rep. of | -6.0333333 | 32.15 | 3576 | 1367 |
| Isimbira | city | | Tanzania, United Rep. of | -6.0333333 | 32.15 | 3576 | 1367 |
| Isinga | city | | Tanzania, United Rep. of | -8.0333333 | 30.9 | 2506 | 1267 |
| Isingiro | city | Kagera Region | Tanzania, United Rep. of | -1.2613889 | 30.6894444 | 4642 | 9161 |
| Isingiro | city | Kagera Region | Tanzania, United Rep. of | -1.2738889 | 30.6905556 | 4330 | 9161 |
| Isingisha | city | | Tanzania, United Rep. of | -2.7333333 | 33.2333333 | 3950 | 14834 |
| Isishunu | city | | Tanzania, United Rep. of | -3 | 32.8833333 | 4192 | 14789 |
| Ismani | city | | Tanzania, United Rep. of | -7.5 | 35.8 | 4140 | 3276 |
| Isoko | city | | Tanzania, United Rep. of | -9.4833333 | 33.5 | 4832 | 8390 |
| Isombe | city | | Tanzania, United Rep. of | -8 | 35.5833333 | 6020 | 3276 |
| Isombeka | city | | Tanzania, United Rep. of | -6.2666667 | 34.9666667 | 3795 | 854 |
| Isome | city | | Tanzania, United Rep. of | -7.9333333 | 32.4 | 3106 | 759 |
| Isome | city | | Tanzania, United Rep. of | -9.4333333 | 34.4833333 | 3415 | 5238 |
| Isonga | city | | Tanzania, United Rep. of | -6.4333333 | 30.1333333 | 2536 | 4509 |
| Isopa | city | | Tanzania, United Rep. of | -8.4833333 | 31.5 | 6558 | 5460 |
| Isowa | city | | Tanzania, United Rep. of | -6.6333333 | 34.15 | 4199 | 854 |
| Issenye | city | | Tanzania, United Rep. of | -2 | 34.3333333 | 4104 | 2556 |
| Issui | city | | Tanzania, United Rep. of | -4.2 | 34.2166667 | 3510 | 6644 |
| Issuna | city | | Tanzania, United Rep. of | -5.3833333 | 34.7666667 | 4671 | 5423 |
| Issuri | city | | Tanzania, United Rep. of | -5.3 | 33.7333333 | 4212 | 1755 |
| Isuja | city | | Tanzania, United Rep. of | -3.0833333 | 32.8833333 | 3946 | 14789 |
| Isumba | city | | Tanzania, United Rep. of | -6.3666667 | 33.6666667 | 4826 | 1750 |
| Isuna | city | | Tanzania, United Rep. of | -5.3833333 | 34.7666667 | 4671 | 5423 |
| Isungahoro | city | | Tanzania, United Rep. of | -3.7333333 | 33.9333333 | 3635 | 10617 |
| Isungwi | city | | Tanzania, United Rep. of | -2.85 | 33.0833333 | 3766 | 43131 |
| Isunura | city | | Tanzania, United Rep. of | -8.6166667 | 34.4166667 | 3533 | 5502 |
| Iswangala | city | | Tanzania, United Rep. of | -6.0833333 | 32.45 | 3936 | 1755 |
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