| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ilachchankulama | city | North Central Province | Sri Lanka | 8.25 | 80.7 | 433 | 15492 |
| Ilakanta | city | North Eastern Province | Sri Lanka | 8.4833333 | 81.35 | 9 | 7422 |
| Ilakanthai | city | North Eastern Province | Sri Lanka | 8.4833333 | 81.35 | 9 | 7422 |
| Ilakkama | city | North Central Province | Sri Lanka | 8.4666667 | 80.55 | 311 | 15484 |
| Ilakkantai | city | North Eastern Province | Sri Lanka | 8.4833333 | 81.35 | 9 | 7422 |
| Ilakkarikkulam | city | North Eastern Province | Sri Lanka | 8.7333333 | 79.9666667 | 19 | 8267 |
| Ilakkawiddawewa | city | North Central Province | Sri Lanka | 8.65 | 80.4166667 | 272 | 13239 |
| Ilakkepudena and Dumbadawellawa | city | Province of Uva | Sri Lanka | 7.2 | 81.2333333 | 1007 | 15493 |
| Ilamarudankulam | city | North Eastern Province | Sri Lanka | 8.6666667 | 80.4833333 | 298 | 11199 |
| Ilamarudankulama | city | North Eastern Province | Sri Lanka | 8.6666667 | 80.4833333 | 298 | 11199 |
| Ilamarutankulam | city | North Eastern Province | Sri Lanka | 8.8666667 | 80.5666667 | 314 | 9125 |
| Ilamaruthankulam | city | North Eastern Province | Sri Lanka | 8.8666667 | 80.5666667 | 314 | 9125 |
| Ilandagahawewa | city | North Central Province | Sri Lanka | 8.35 | 80.3 | 262 | 15488 |
| Ilandaiyadi | city | North Western Province | Sri Lanka | 8.0333333 | 79.7166667 | 26 | 9482 |
| Ilandamodu | city | North Eastern Province | Sri Lanka | 8.2333333 | 81.2833333 | 39 | 17426 |
| Ilankaitturai | city | North Eastern Province | Sri Lanka | 8.3666667 | 81.3666667 | 3 | 14222 |
| Ilankaiturai | city | North Eastern Province | Sri Lanka | 8.3666667 | 81.3666667 | 3 | 14222 |
| Ilantaikkulam | city | North Eastern Province | Sri Lanka | 8.7833333 | 79.95 | 22 | 5251 |
| Ilantaikkulam | city | North Eastern Province | Sri Lanka | 8.8333333 | 79.9666667 | 6 | 9519 |
| Ilantaikkulam | city | North Eastern Province | Sri Lanka | 8.8166667 | 80.05 | 45 | 10379 |
| Ilantaimoddaikkulam | city | North Eastern Province | Sri Lanka | 8.7833333 | 79.9833333 | 26 | 8987 |
| Ilantaivan | city | North Eastern Province | Sri Lanka | 8.9166667 | 80 | 6 | 9846 |
| Ilavankulam | city | North Western Province | Sri Lanka | 8.2666667 | 79.8666667 | 16 | 23573 |
| Ilawankulam | city | North Western Province | Sri Lanka | 8.2666667 | 79.8666667 | 16 | 23573 |
| Ilimbe | city | Western Province | Sri Lanka | 6.7 | 80.1 | 223 | 88688 |
| Ilipangamuwa | city | Province of Sabaragamuwa | Sri Lanka | 7.2 | 80.2333333 | 807 | 68137 |
| Ilippadeniya | city | North Western Province | Sri Lanka | 7.5833333 | 79.8333333 | 29 | 20037 |
| Ilippugomuwa | city | North Western Province | Sri Lanka | 7.4166667 | 79.9333333 | 68 | 40525 |
| Illagolla | city | Central Province | Sri Lanka | 7.15 | 80.8166667 | 2890 | 64529 |
| Illavalai | city | North Eastern Province | Sri Lanka | 9.7833333 | 79.9833333 | 36 | 51261 |
| Illawatura | city | Central Province | Sri Lanka | 7.1666667 | 80.5666667 | 1929 | 74165 |
| Illehpekadewe | city | North Eastern Province | Sri Lanka | 9.1 | 80.0833333 | 3 | 3580 |
| Illuka | city | Province of Uva | Sri Lanka | 7.0166667 | 81 | 3392 | 37245 |
| Illukgoda | city | North Western Province | Sri Lanka | 7.4333333 | 80.25 | 695 | 45427 |
| Illukkumbura | city | Southern Province | Sri Lanka | 7.55 | 80.7666667 | 1994 | 30318 |
| Illukmulla | city | Southern Province | Sri Lanka | 6.0333333 | 80.75 | 124 | 20589 |
| Illukpelessa | city | North Western Province | Sri Lanka | 7.55 | 80.5 | 515 | 42983 |
| Illukpelessa | city | Central Province | Sri Lanka | 7.1333333 | 80.8166667 | 1784 | 64529 |
| Illukpelessa | city | Province of Uva | Sri Lanka | 6.6666667 | 80.8666667 | 1522 | 39760 |
| Illukpelessa | city | Central Province | Sri Lanka | 7.0333333 | 80.9 | 2811 | 56687 |
| Illukpitiya | city | Southern Province | Sri Lanka | 6.2166667 | 80.1 | 134 | 84287 |
| Illukpitiya | city | Province of Sabaragamuwa | Sri Lanka | 6.8833333 | 80.2166667 | 554 | 143639 |
| Illukpitiya | city | Southern Province | Sri Lanka | 6.0166667 | 80.25 | 6 | 59158 |
| Illuktenna | city | Province of Sabaragamuwa | Sri Lanka | 7.0333333 | 80.3333333 | 777 | 64747 |
| Illuktenna | city | Central Province | Sri Lanka | 7.1666667 | 80.9166667 | 2109 | 62844 |
| Illuktenna | city | Central Province | Sri Lanka | 7.3666667 | 80.9166667 | 1374 | 72461 |
| Illuktenna | city | Province of Uva | Sri Lanka | 7.1333333 | 81.0333333 | 1889 | 37843 |
| Illukuveddi | city | North Eastern Province | Sri Lanka | 7.7833333 | 81.5166667 | 144 | 24837 |
| Illukvehera | city | North Western Province | Sri Lanka | 7.5833333 | 80.4666667 | 459 | 45414 |
| Illukwatta | city | Central Province | Sri Lanka | 7.2666667 | 80.55 | 2007 | 75528 |
| Illukwela | city | North Western Province | Sri Lanka | 7.4166667 | 80.4666667 | 692 | 51300 |
| Illupaikedavai | city | North Eastern Province | Sri Lanka | 9.1 | 80.0833333 | 3 | 3580 |
| Illupaikulam | city | North Eastern Province | Sri Lanka | 8.8833333 | 80 | 45 | 10379 |
| Illupaikulam | city | North Eastern Province | Sri Lanka | 8.7 | 80.5333333 | 334 | 11597 |
| Illupaikulam | city | North Eastern Province | Sri Lanka | 8.6333333 | 81.2 | 9 | 13351 |
| Illupaiyadichenai | city | North Eastern Province | Sri Lanka | 7.6333333 | 81.6833333 | 45 | 24653 |
| Illupayadichenai | city | North Eastern Province | Sri Lanka | 7.7333333 | 81.55 | 131 | 24840 |
| Illuppadichenai | city | North Eastern Province | Sri Lanka | 7.7333333 | 81.55 | 131 | 24840 |
| Illuppaikadavai | city | North Eastern Province | Sri Lanka | 9.1 | 80.0833333 | 3 | 3580 |
| Illuppaikkadavai | city | North Eastern Province | Sri Lanka | 9.1 | 80.0833333 | 3 | 3580 |
| Illuppaikulam | city | North Eastern Province | Sri Lanka | 8.7 | 80.5333333 | 334 | 11597 |
| Illuppaiyadichchenai | city | North Eastern Province | Sri Lanka | 7.6333333 | 81.6833333 | 45 | 24653 |
| Illuppaiyadichenai | city | North Eastern Province | Sri Lanka | 7.6333333 | 81.6833333 | 45 | 24653 |
| Ilpemada | city | Central Province | Sri Lanka | 7.35 | 80.4833333 | 954 | 68872 |
| Ilubbuluwa | city | Province of Sabaragamuwa | Sri Lanka | 6.6833333 | 80.3333333 | 374 | 44027 |
| Ilukarawa | city | Province of Uva | Sri Lanka | 6.8 | 81.0833333 | 1332 | 31528 |
| Ilukbodagama | city | North Central Province | Sri Lanka | 8.0333333 | 80.6166667 | 488 | 15502 |
| Ilukewela | city | North Western Province | Sri Lanka | 7.4166667 | 80.4666667 | 692 | 51300 |
| Ilukgoda | city | North Western Province | Sri Lanka | 7.4333333 | 80.25 | 695 | 45427 |
| Ilukgoda | city | Province of Sabaragamuwa | Sri Lanka | 7.2833333 | 80.4166667 | 531 | 66914 |
| Ilukhena | city | North Western Province | Sri Lanka | 7.5 | 80 | 78 | 45424 |
| Ilukhena | city | Central Province | Sri Lanka | 7.45 | 80.8666667 | 935 | 60461 |
| Ilukkepudena and Dumbadawellawa | city | Province of Uva | Sri Lanka | 7.2 | 81.2333333 | 1007 | 15493 |
| Ilukketiya | city | Province of Uva | Sri Lanka | 6.75 | 80.9 | 2365 | 36843 |
| Ilukkuliyawa | city | North Western Province | Sri Lanka | 7.8166667 | 79.9666667 | 160 | 34460 |
| Ilukkumbura | city | Province of Sabaragamuwa | Sri Lanka | 6.6 | 80.6666667 | 1358 | 44034 |
| Ilukkumbura | city | Southern Province | Sri Lanka | 7.55 | 80.7666667 | 1994 | 30318 |
| Ilukkumbura | city | Province of Uva | Sri Lanka | 7.1 | 81.2333333 | 1112 | 13802 |
| Ilukkumburagoda | city | Province of Sabaragamuwa | Sri Lanka | 6.7 | 80.8 | 1728 | 42197 |
| Ilukkumburugoda | city | Province of Sabaragamuwa | Sri Lanka | 6.7 | 80.8 | 1728 | 42197 |
| Ilukmulla | city | Southern Province | Sri Lanka | 6.0333333 | 80.75 | 124 | 20589 |
| Ilukpelessa | city | North Western Province | Sri Lanka | 7.55 | 80.5 | 515 | 42983 |
| Ilukpelessa | city | Central Province | Sri Lanka | 7.1333333 | 80.8166667 | 1784 | 64529 |
| Ilukpelessa | city | Province of Uva | Sri Lanka | 6.6666667 | 80.8666667 | 1522 | 39760 |
| Ilukpelessa | city | Central Province | Sri Lanka | 7.0333333 | 80.9 | 2811 | 56687 |
| Ilukpelessa | city | Central Province | Sri Lanka | 7.45 | 80.9 | 1371 | 63800 |
| Ilukpitiya | city | Southern Province | Sri Lanka | 6.2166667 | 80.1 | 134 | 84287 |
| Ilukpitiya | city | North Western Province | Sri Lanka | 7.5 | 80.1333333 | 692 | 45424 |
| Ilukpitiya | city | Province of Sabaragamuwa | Sri Lanka | 6.8833333 | 80.2166667 | 554 | 143639 |
| Ilukpitiya | city | Southern Province | Sri Lanka | 6.0166667 | 80.25 | 6 | 59158 |
| Ilukpitiya | city | North Eastern Province | Sri Lanka | 7.2166667 | 81.6666667 | 485 | 16637 |
| Iluktenna | city | Province of Sabaragamuwa | Sri Lanka | 7.0333333 | 80.3333333 | 777 | 64747 |
| Iluktenna | city | Central Province | Sri Lanka | 7.3666667 | 80.9166667 | 1374 | 72461 |
| Iluktenna | city | Province of Uva | Sri Lanka | 6.7333333 | 80.9333333 | 1538 | 35980 |
| Iluktenna | city | Province of Uva | Sri Lanka | 7.1333333 | 81.0333333 | 1889 | 37843 |
| Ilukwatta | city | Central Province | Sri Lanka | 7.2666667 | 80.55 | 2007 | 75528 |
| Ilukwelagama | city | Province of Uva | Sri Lanka | 7.0166667 | 80.9333333 | 3110 | 48005 |
| Ilukwewa | city | North Central Province | Sri Lanka | 8.3333333 | 80.7333333 | 341 | 15489 |
| Ilukwewa | city | North Central Province | Sri Lanka | 7.9666667 | 80.7833333 | 623 | 21891 |
| Iluppadichchenai | city | North Eastern Province | Sri Lanka | 7.7333333 | 81.55 | 131 | 24840 |
| Iluppaikkadavai | city | North Eastern Province | Sri Lanka | 9.1 | 80.0833333 | 3 | 3580 |
| Iluppaikkulam | city | North Eastern Province | Sri Lanka | 8.8833333 | 80 | 45 | 10379 |
| Iluppakanniya | city | North Central Province | Sri Lanka | 8.3333333 | 80.4833333 | 351 | 15489 |
| Iluppankadawala | city | North Central Province | Sri Lanka | 8.2833333 | 80.3333333 | 347 | 15489 |
| Iluppankadawala | city | North Central Province | Sri Lanka | 8.3666667 | 80.45 | 301 | 15488 |
| Iluppella | city | Southern Province | Sri Lanka | 6.1 | 80.45 | 479 | 90325 |
| Iluppukanniya | city | North Central Province | Sri Lanka | 8.2166667 | 80.6666667 | 475 | 15492 |
| Iluppukulama | city | North Central Province | Sri Lanka | 8.3666667 | 80.35 | 328 | 15488 |
| Ilvalai | city | North Eastern Province | Sri Lanka | 9.7833333 | 79.9833333 | 36 | 51261 |
| Ilwana | city | Province of Sabaragamuwa | Sri Lanka | 7.15 | 80.4 | 1062 | 64824 |
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