| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Idai Kurichchi | city | North Eastern Province | Sri Lanka | 9.7333333 | 80.2166667 | 3 | 69243 |
| Idaikkadu | city | North Eastern Province | Sri Lanka | 9.7833333 | 80.1166667 | 3 | 59985 |
| Idaikkadu | city | North Eastern Province | Sri Lanka | 9.15 | 80.65 | 114 | 5676 |
| Idaikkurichchi | city | North Eastern Province | Sri Lanka | 9.7333333 | 80.2166667 | 3 | 69243 |
| Idalgashinna | city | Province of Uva | Sri Lanka | 6.7833333 | 80.9 | 4507 | 37325 |
| Idamagama | city | Central Province | Sri Lanka | 7.3333333 | 80.5666667 | 1118 | 75747 |
| Idambowa | city | Province of Uva | Sri Lanka | 7.3666667 | 81.4 | 429 | 11010 |
| Idamegama | city | Central Province | Sri Lanka | 7.3333333 | 80.5666667 | 1118 | 75747 |
| Idamegama | city | Province of Uva | Sri Lanka | 6.9 | 80.9333333 | 3756 | 37213 |
| Idamegama | city | Province of Uva | Sri Lanka | 6.9833333 | 80.9666667 | 2910 | 37506 |
| Idamegama | city | Province of Uva | Sri Lanka | 6.9166667 | 80.9833333 | 4114 | 37224 |
| Idamegama | city | Province of Uva | Sri Lanka | 7.0333333 | 81.0166667 | 4944 | 37245 |
| Idamegama | city | Province of Uva | Sri Lanka | 7.0666667 | 81.0166667 | 2109 | 37423 |
| Idamegama | city | Province of Uva | Sri Lanka | 6.8666667 | 81.0333333 | 3763 | 37113 |
| Idamelanda | city | Central Province | Sri Lanka | 7.2 | 80.7666667 | 2414 | 69604 |
| Idampitiya | city | Province of Sabaragamuwa | Sri Lanka | 7.2333333 | 80.4666667 | 882 | 67926 |
| Idampitiya | city | Central Province | Sri Lanka | 7.0833333 | 80.7833333 | 3618 | 63518 |
| Idandukita | city | Southern Province | Sri Lanka | 6.3 | 80.4333333 | 682 | 91128 |
| Idangama | city | North Western Province | Sri Lanka | 7.55 | 80.5666667 | 1587 | 37454 |
| Idangapola | city | North Western Province | Sri Lanka | 7.35 | 80.2333333 | 610 | 46131 |
| Idangapola | city | North Western Province | Sri Lanka | 7.5333333 | 80.4166667 | 416 | 45420 |
| Idangoda | city | Province of Sabaragamuwa | Sri Lanka | 6.7333333 | 80.2666667 | 311 | 44455 |
| Idantota | city | Southern Province | Sri Lanka | 6.2166667 | 80.0666667 | 19 | 54674 |
| Iddagoda | city | Western Province | Sri Lanka | 6.55 | 80.1 | 498 | 88716 |
| Iddamalgoda | city | Province of Sabaragamuwa | Sri Lanka | 6.8833333 | 80.2166667 | 554 | 143639 |
| Iddamalpitiya | city | North Western Province | Sri Lanka | 8.05 | 80.2333333 | 357 | 45170 |
| Iddapola | city | North Eastern Province | Sri Lanka | 7.5 | 81.3 | 459 | 16632 |
| Iddawala | city | Province of Sabaragamuwa | Sri Lanka | 7.1666667 | 80.45 | 967 | 64722 |
| Idikadapelessa | city | North Western Province | Sri Lanka | 7.6833333 | 80.5 | 679 | 39959 |
| Iduranpitiya | city | Province of Sabaragamuwa | Sri Lanka | 6.6 | 80.8 | 1502 | 43464 |
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