| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ichera | city | Irkutskaya Oblast' | Russia | 58.5130556 | 109.7602778 | 787 | 56 |
| Ichëra | city | Irkutskaya Oblast' | Russia | 58.5130556 | 109.7602778 | 787 | 56 |
| Idanskiy | city | Irkutskaya Oblast' | Russia | 52.4625 | 103.7222222 | 1414 | 2108 |
| Idinskaya | city | Irkutskaya Oblast' | Russia | 52.4625 | 103.7222222 | 1414 | 2108 |
| Ighzhey | city | Irkutskaya Oblast' | Russia | 54.0202778 | 103.1369444 | 1315 | 45 |
| Igirma | city | Irkutskaya Oblast' | Russia | 56.9808333 | 103.6297222 | 1204 | 293 |
| Ignay | city | Irkutskaya Oblast' | Russia | 53.7905556 | 101.6280556 | 1584 | 196 |
| Ignin | city | Irkutskaya Oblast' | Russia | 54.0888889 | 101.7438889 | 1496 | 307 |
| Ignino | city | Irkutskaya Oblast' | Russia | 54.0888889 | 101.7438889 | 1496 | 307 |
| Igzhey | city | Irkutskaya Oblast' | Russia | 54.0202778 | 103.1369444 | 1315 | 45 |
| Igzhinovka | city | Irkutskaya Oblast' | Russia | 54.7333333 | 105.2 | 1430 | 42 |
| Ika | city | Irkutskaya Oblast' | Russia | 59.3163889 | 106.3491667 | 1217 | 5 |
| Ikey | city | Irkutskaya Oblast' | Russia | 54.1919444 | 100.0811111 | 1699 | 187 |
| Ikhinaguy | city | Irkutskaya Oblast' | Russia | 53.7308333 | 105.33 | 2329 | 61 |
| Ikonniki | city | Irkutskaya Oblast' | Russia | 54.0397222 | 102.4188889 | 2037 | 30157 |
| Ikonnikovskaya | city | Irkutskaya Oblast' | Russia | 52.4469444 | 103.0752778 | 1728 | 733 |
| Ikonnikovski | city | Irkutskaya Oblast' | Russia | 52.4469444 | 103.0752778 | 1728 | 733 |
| Ikonnikovskiy | city | Irkutskaya Oblast' | Russia | 54.7166667 | 100.3666667 | 1689 | 187 |
| Ikonnikovskiy | city | Irkutskaya Oblast' | Russia | 52.4469444 | 103.0752778 | 1728 | 733 |
| Ikzhey | city | Irkutskaya Oblast' | Russia | 54.0202778 | 103.1369444 | 1315 | 45 |
| Il'ina | city | Irkutskaya Oblast' | Russia | 58.2 | 109.4166667 | 797 | 56 |
| Il'ino | city | Irkutskaya Oblast' | Russia | 58.2 | 109.4166667 | 797 | 56 |
| Il'inskaya | city | Irkutskaya Oblast' | Russia | 58.2 | 109.4 | 846 | 56 |
| Il'inskiy | city | Irkutskaya Oblast' | Russia | 55.5333333 | 100.75 | 1469 | 215 |
| Il'inskoye | city | Irkutskaya Oblast' | Russia | 56.6 | 101.8166667 | 921 | 161 |
| Ildyk | city | Irkutskaya Oblast' | Russia | 54.0666667 | 100.65 | 1696 | 187 |
| Ilganskaya | city | Irkutskaya Oblast' | Russia | 53.5519444 | 102.4252778 | 1607 | 406 |
| Ilganskoye | city | Irkutskaya Oblast' | Russia | 53.5519444 | 102.4252778 | 1607 | 406 |
| Ili | city | Irkutskaya Oblast' | Russia | 54.1691667 | 101.38 | 1548 | 355 |
| Ilim | city | Irkutskaya Oblast' | Russia | 56.4833333 | 104.0666667 | 1965 | 355 |
| Ilimsk | city | Irkutskaya Oblast' | Russia | 56.7666667 | 103.8666667 | 958 | 355 |
| Ilir | city | Irkutskaya Oblast' | Russia | 55.2263889 | 100.6788889 | 1404 | 210 |
| Ilirskiy | city | Irkutskaya Oblast' | Russia | 55.0333333 | 100.6 | 1400 | 189 |
| Iloty | city | Irkutskaya Oblast' | Russia | 52.9538889 | 102.2916667 | 1578 | 302 |
| Imeni Vtoroy Pyatiletki | city | Irkutskaya Oblast' | Russia | 55.05 | 105.0833333 | 1446 | 42 |
| Imikhse-Buz | city | Irkutskaya Oblast' | Russia | 52.8666667 | 106.5166667 | 2237 | 112 |
| Imykhnut | city | Irkutskaya Oblast' | Russia | 54.2333333 | 106.5 | 2224 | 61 |
| Inarigda | city | Irkutskaya Oblast' | Russia | 63.1863889 | 107.6433333 | 751 | 5 |
| Inela | city | Irkutskaya Oblast' | Russia | 59.8833333 | 109.3333333 | 1233 | 5 |
| Inga | city | Irkutskaya Oblast' | Russia | 52.9722222 | 101.9527778 | 1827 | 299 |
| Ingarigda | city | Irkutskaya Oblast' | Russia | 63.1863889 | 107.6433333 | 751 | 5 |
| Ingashet | city | Irkutskaya Oblast' | Russia | 55.6833333 | 97.6333333 | 1332 | 103 |
| Ingut | city | Irkutskaya Oblast' | Russia | 54.175 | 100.4269444 | 1637 | 187 |
| Innokent'yerskoye | city | Irkutskaya Oblast' | Russia | 54.6019444 | 100.7269444 | 1463 | 176 |
| Innokent'yevskiy | city | Irkutskaya Oblast' | Russia | 54.6019444 | 100.7269444 | 1463 | 176 |
| Innokent'yevskiy | city | Irkutskaya Oblast' | Russia | 58.5833333 | 116.4 | 1469 | 14 |
| Innokent'yevskoye | city | Irkutskaya Oblast' | Russia | 54.6019444 | 100.7269444 | 1463 | 176 |
| Inorigda | city | Irkutskaya Oblast' | Russia | 63.1863889 | 107.6433333 | 751 | 5 |
| Ipatova | city | Irkutskaya Oblast' | Russia | 57.0166667 | 106.7666667 | 1312 | 47 |
| Ipsit | city | Irkutskaya Oblast' | Russia | 54.5 | 98.9 | 1814 | 61 |
| Iret' | city | Irkutskaya Oblast' | Russia | 52.9844444 | 102.4966667 | 1505 | 299 |
| Irgey | city | Irkutskaya Oblast' | Russia | 54.6 | 99.9833333 | 2004 | 96 |
| Irkutsk | city | Irkutskaya Oblast' | Russia | 52.2666667 | 104.3333333 | 1627 | 22474 |
| Irkutskiy | city | Irkutskaya Oblast' | Russia | 54.2666667 | 101.8333333 | 1715 | 355 |
| Isakovka | city | Irkutskaya Oblast' | Russia | 53.3019444 | 101.8797222 | 1751 | 406 |
| Iset' | city | Irkutskaya Oblast' | Russia | 53.85 | 105.9666667 | 1722 | 61 |
| Ishidey | city | Irkutskaya Oblast' | Russia | 54.1166667 | 99.7155556 | 1742 | 145 |
| Iskra | city | Irkutskaya Oblast' | Russia | 52.2666667 | 104.6333333 | 1781 | 476 |
| Isol'ye-Sibirskoye | city | Irkutskaya Oblast' | Russia | 52.7519444 | 103.6452778 | 1437 | 31844 |
| Ivanov Mys | city | Irkutskaya Oblast' | Russia | 56.5166667 | 98.4 | 744 | 103 |
| Ivanova Zaboka | city | Irkutskaya Oblast' | Russia | 56.4666667 | 98.4333333 | 731 | 103 |
| Ivanovka | city | Irkutskaya Oblast' | Russia | 52.3388889 | 103.2844444 | 1594 | 733 |
| Ivanovskiy | city | Irkutskaya Oblast' | Russia | 53.9605556 | 101.3616667 | 1594 | 209 |
| Ivanovskiy | city | Irkutskaya Oblast' | Russia | 53.55 | 101.75 | 1643 | 392 |
| Ivanovskiy | city | Irkutskaya Oblast' | Russia | 52.3388889 | 103.2844444 | 1594 | 733 |
| Ivanovskoye | city | Irkutskaya Oblast' | Russia | 52.3388889 | 103.2844444 | 1594 | 733 |
| Ivanushkova | city | Irkutskaya Oblast' | Russia | 58.7 | 110.4333333 | 1377 | 56 |
| Ivanushkovo | city | Irkutskaya Oblast' | Russia | 58.7 | 110.4333333 | 1377 | 56 |
| Ivda | city | Irkutskaya Oblast' | Russia | 54.3 | 104.85 | 2368 | 42 |
| Ivdinskaya | city | Irkutskaya Oblast' | Russia | 54.3 | 104.85 | 2368 | 42 |
| Iyskiy Vtoroy | city | Irkutskaya Oblast' | Russia | 54.0833333 | 100.15 | 1706 | 187 |
| Izbushechnaya | city | Irkutskaya Oblast' | Russia | 56.7086111 | 104.2486111 | 1896 | 355 |
| Izegol | city | Irkutskaya Oblast' | Russia | 54.3097222 | 100.125 | 1879 | 187 |
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