| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Isamalaittalvu | city | North Eastern Province | Sri Lanka | 8.8 | 80.0666667 | 55 | 10379 |
| Isanbessawa | city | North Central Province | Sri Lanka | 8.5666667 | 80.4833333 | 314 | 15481 |
| Isenbessewa | city | North Central Province | Sri Lanka | 8.5666667 | 80.4833333 | 314 | 15481 |
| Issanne-Ara | city | Province of Uva | Sri Lanka | 6.7666667 | 81.25 | 577 | 9721 |
| Issenbessawewa | city | North Central Province | Sri Lanka | 8.5666667 | 80.4833333 | 314 | 15481 |
| Iswatiya | city | North Western Province | Sri Lanka | 7.65 | 80.35 | 452 | 45406 |
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