| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ichchiputtur | city | State of Tamil Nadu | India | 13.1166667 | 79.65 | 255 | 80174 |
| Ichchiputtūr | city | State of Tamil Nadu | India | 13.1166667 | 79.65 | 255 | 80174 |
| Idaiseval | city | State of Tamil Nadu | India | 9.0833333 | 77.8166667 | 331 | 27644 |
| Idaiyakottai | city | State of Tamil Nadu | India | 10.6166667 | 77.8333333 | 754 | 48184 |
| Idaiyankudiyiruppu | city | State of Tamil Nadu | India | 8.3166667 | 77.8833333 | 88 | 30337 |
| Idappadi | city | State of Tamil Nadu | India | 11.5833333 | 77.85 | 784 | 78289 |
| Idindakarai | city | State of Tamil Nadu | India | 8.1833333 | 77.75 | 3 | 15927 |
| Idingikari | city | State of Tamil Nadu | India | 8.1833333 | 77.75 | 3 | 15927 |
| Idāppādi | city | State of Tamil Nadu | India | 11.5833333 | 77.85 | 784 | 78289 |
| Ikkadu | city | State of Tamil Nadu | India | 13.1575 | 79.9194444 | 150 | 115786 |
| Ikkādu | city | State of Tamil Nadu | India | 13.1575 | 79.9194444 | 150 | 115786 |
| Ilaiyankudi | city | State of Tamil Nadu | India | 9.6333333 | 78.6333333 | 98 | 35290 |
| Ilaiyarasanendal | city | State of Tamil Nadu | India | 9.2166667 | 77.8 | 357 | 43461 |
| Ilaiyānkudi | city | State of Tamil Nadu | India | 9.6333333 | 78.6333333 | 98 | 35290 |
| Ilampalli | city | State of Tamil Nadu | India | 11.2166667 | 77.9 | 508 | 64302 |
| Ilampillai | city | State of Tamil Nadu | India | 11.6 | 78 | 843 | 117886 |
| Ilangakkurichchi | city | State of Tamil Nadu | India | 10.5333333 | 78.35 | 728 | 37048 |
| Ilattur | city | State of Tamil Nadu | India | 9 | 77.3 | 524 | 88046 |
| Ilattūr | city | State of Tamil Nadu | India | 9 | 77.3 | 524 | 88046 |
| Ilayangudi | city | State of Tamil Nadu | India | 9.6333333 | 78.6333333 | 98 | 35290 |
| Illuppur | city | State of Tamil Nadu | India | 10.5166667 | 78.6333333 | 465 | 34094 |
| Iluppur | city | State of Tamil Nadu | India | 10.5166667 | 78.6333333 | 465 | 34094 |
| Iluppūr | city | State of Tamil Nadu | India | 10.5166667 | 78.6333333 | 465 | 34094 |
| Indira Nagar | city | State of Tamil Nadu | India | 12.9966667 | 80.2530556 | 32 | 1366393 |
| Indur | city | State of Tamil Nadu | India | 12.1333333 | 78.0666667 | 1499 | 42904 |
| Iraiyanaraiyur | city | State of Tamil Nadu | India | 11.7166667 | 79.1833333 | 285 | 52850 |
| Iraiyur | city | State of Tamil Nadu | India | 11.8 | 79.2 | 298 | 55903 |
| Iraiyānāraiyūr | city | State of Tamil Nadu | India | 11.7166667 | 79.1833333 | 285 | 52850 |
| Iraiyūr | city | State of Tamil Nadu | India | 11.8 | 79.2 | 298 | 55903 |
| Irugur | city | State of Tamil Nadu | India | 11.0166667 | 77.0666667 | 1125 | 107208 |
| Irugūr | city | State of Tamil Nadu | India | 11.0166667 | 77.0666667 | 1125 | 107208 |
| Irumbedu | city | State of Tamil Nadu | India | 12.95 | 80.022222 | 75 | 78686 |
| Irumeni | city | State of Tamil Nadu | India | 9.3 | 79.0333333 | 26 | 25949 |
| Irundai | city | State of Tamil Nadu | India | 11.7666667 | 79.3833333 | 190 | 70400 |
| Irungattukottai | city | State of Tamil Nadu | India | 12.9963889 | 79.9908333 | 147 | 83049 |
| Isanattam | city | State of Tamil Nadu | India | 10.7166667 | 78.0166667 | 669 | 47071 |
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