| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ibaste | city | Polvamaa | Estonia | 58.2372222 | 27.1080556 | 108 | 2241 |
| Idaotsa | city | Harjumaa | Estonia | 59.6213889 | 25.0227778 | 3 | 858 |
| Idavere | city | Laane-Virumaa | Estonia | 59.4230556 | 26.3272222 | 219 | 1653 |
| Iedas | city | Vorumaa | Estonia | 57.7230556 | 27.2575 | 554 | 1568 |
| Iekant | city | Raplamaa | Estonia | 58.8636111 | 25.044444 | 226 | 1051 |
| Ievve | city | Ida-Virumaa | Estonia | 59.3591667 | 27.4211111 | 183 | 4680 |
| Iga | city | Saaremaa | Estonia | 58.6005556 | 23.1219444 | 32 | 520 |
| Igakula | city | Saaremaa | Estonia | 58.6005556 | 23.1219444 | 32 | 520 |
| Igakyula | city | Saaremaa | Estonia | 58.6005556 | 23.1219444 | 32 | 520 |
| Igaküla | city | Saaremaa | Estonia | 58.6005556 | 23.1219444 | 32 | 520 |
| Igasalu | city | Harjumaa | Estonia | 59.5186111 | 25.1902778 | 3 | 3795 |
| Igavere | city | Harjumaa | Estonia | 59.34 | 25.0836111 | 167 | 9791 |
| Igavere | city | Tartumaa | Estonia | 58.5305556 | 26.7716667 | 177 | 3565 |
| Igevere | city | Tartumaa | Estonia | 58.5305556 | 26.7716667 | 177 | 3565 |
| Igevere | city | Tartumaa | Estonia | 58.2980556 | 26.8197222 | 236 | 4085 |
| Ignase | city | Tartumaa | Estonia | 58.2611111 | 26.8469444 | 272 | 3866 |
| Igrise | city | Polvamaa | Estonia | 57.9725 | 27.4972222 | 121 | 1320 |
| Ihamaru | city | Polvamaa | Estonia | 58.0636111 | 26.9013889 | 344 | 1316 |
| Ihasalu | city | Harjumaa | Estonia | 59.5186111 | 25.1902778 | 3 | 3795 |
| Ihaste | city | Tartumaa | Estonia | 58.3497222 | 26.7858333 | 131 | 4081 |
| Iia | city | Viljandimaa | Estonia | 58.3341667 | 25.19 | 187 | 1534 |
| Iigaste | city | Valgamaa | Estonia | 57.8302778 | 26.2519444 | 134 | 1582 |
| Iila | city | Laane-Virumaa | Estonia | 59.4911111 | 26.6533333 | 187 | 1639 |
| Iilaste | city | Saaremaa | Estonia | 58.2958333 | 22.7977778 | 26 | 820 |
| Iira | city | Raplamaa | Estonia | 58.9872222 | 24.7191667 | 203 | 1050 |
| Iisaku | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Ikhamaru | city | Polvamaa | Estonia | 58.0636111 | 26.9013889 | 344 | 1316 |
| Ikhasalu | city | Harjumaa | Estonia | 59.5186111 | 25.1902778 | 3 | 3795 |
| Ikla | city | Parnumaa | Estonia | 57.8791667 | 24.3627778 | 45 | 593 |
| Il'gaze | city | Harjumaa | Estonia | 59.4866667 | 25.0777778 | 177 | 7054 |
| Il'maso | city | Harjumaa | Estonia | 59.2897222 | 24.1413889 | 68 | 8960 |
| Ila | city | Viljandimaa | Estonia | 58.3341667 | 25.19 | 187 | 1534 |
| Ilbaku | city | Viljandimaa | Estonia | 58.4708333 | 25.3669444 | 206 | 1604 |
| Ilenurme | city | Tartumaa | Estonia | 58.3158333 | 26.7241667 | 118 | 4085 |
| Ilistvere | city | Laane-Virumaa | Estonia | 59.0361111 | 26.7216667 | 259 | 1974 |
| Illevere | city | Jarvamaa | Estonia | 59.0302778 | 25.8333333 | 285 | 1302 |
| Illi | city | Tartumaa | Estonia | 58.2063889 | 26.4477778 | 252 | 3685 |
| Illi | city | Vorumaa | Estonia | 57.7136111 | 27.325 | 472 | 1568 |
| Illu | city | Parnumaa | Estonia | 58.5136111 | 24.5030556 | 45 | 1526 |
| Illuka | city | Ida-Virumaa | Estonia | 59.2377778 | 27.4847222 | 213 | 4697 |
| Illuka-Asula | city | Ida-Virumaa | Estonia | 59.2377778 | 27.4847222 | 213 | 4697 |
| Illurma | city | Harjumaa | Estonia | 59.3380556 | 24.3405556 | 98 | 9750 |
| Illurmaa | city | Harjumaa | Estonia | 59.3380556 | 24.3405556 | 98 | 9750 |
| Illuste | city | Parnumaa | Estonia | 58.5330556 | 23.7036111 | 19 | 963 |
| Ilmandu | city | Harjumaa | Estonia | 59.4452778 | 24.4916667 | 154 | 6951 |
| Ilmasoo | city | Harjumaa | Estonia | 59.2897222 | 24.1413889 | 68 | 8960 |
| Ilmatsalu | city | Tartumaa | Estonia | 58.3863889 | 26.5466667 | 177 | 4075 |
| Ilmjarve | city | Valgamaa | Estonia | 57.9566667 | 26.45 | 374 | 1568 |
| Ilmjärve | city | Valgamaa | Estonia | 57.9566667 | 26.45 | 374 | 1568 |
| Ilpla | city | Saaremaa | Estonia | 58.2788889 | 22.6608333 | 26 | 888 |
| Ilpla Asundus | city | Saaremaa | Estonia | 58.2788889 | 22.6608333 | 26 | 888 |
| Ilpla-Moisakula | city | Saaremaa | Estonia | 58.2786111 | 22.6780556 | 22 | 834 |
| Ilpla-Mõisaküla | city | Saaremaa | Estonia | 58.2786111 | 22.6780556 | 22 | 834 |
| Iltsma | city | Valgamaa | Estonia | 58.0347222 | 25.9355556 | 223 | 1573 |
| Iltsmo | city | Valgamaa | Estonia | 58.0347222 | 25.9355556 | 223 | 1573 |
| Iltsmu | city | Valgamaa | Estonia | 58.0347222 | 25.9355556 | 223 | 1573 |
| Ilumae | city | Laane-Virumaa | Estonia | 59.5333333 | 25.8933333 | 193 | 1647 |
| Ilumyae | city | Laane-Virumaa | Estonia | 59.5333333 | 25.8933333 | 193 | 1647 |
| Ilumäe | city | Laane-Virumaa | Estonia | 59.5333333 | 25.8933333 | 193 | 1647 |
| Ilvese | city | Parnumaa | Estonia | 58.2386111 | 24.6863889 | 49 | 1540 |
| Ilyumeye | city | Laane-Virumaa | Estonia | 59.5333333 | 25.8933333 | 193 | 1647 |
| Ilʼgaze | city | Harjumaa | Estonia | 59.4866667 | 25.0777778 | 177 | 7054 |
| Ilʼmaso | city | Harjumaa | Estonia | 59.2897222 | 24.1413889 | 68 | 8960 |
| Imara | city | Saaremaa | Estonia | 58.1202778 | 22.2594444 | 0 | 285 |
| Imari | city | Saaremaa | Estonia | 58.1202778 | 22.2594444 | 0 | 285 |
| Imastu | city | Laane-Virumaa | Estonia | 59.2691667 | 26.047222 | 374 | 1660 |
| Imastu Asundus | city | Laane-Virumaa | Estonia | 59.2691667 | 26.047222 | 374 | 1660 |
| Imatu | city | Ida-Virumaa | Estonia | 59.0988889 | 27.4708333 | 160 | 4712 |
| Imatu Asundus | city | Ida-Virumaa | Estonia | 59.0988889 | 27.4708333 | 160 | 4712 |
| Imavere | city | Saaremaa | Estonia | 58.5008333 | 22.9036111 | 49 | 1096 |
| Imavere | city | Jarvamaa | Estonia | 58.7330556 | 25.7725 | 239 | 1330 |
| Immiste | city | Saaremaa | Estonia | 58.2727778 | 21.9872222 | 45 | 813 |
| Imste | city | Tartumaa | Estonia | 58.2669444 | 27.0747222 | 180 | 3399 |
| Imukvere | city | Laane-Virumaa | Estonia | 58.9683333 | 26.5413889 | 278 | 1646 |
| Imukvere | city | Jogevamaa | Estonia | 58.7366667 | 26.6544444 | 351 | 1264 |
| Indu | city | Saaremaa | Estonia | 58.0522222 | 22.2111111 | 3 | 501 |
| Ingkula | city | Laanemaa | Estonia | 59.0313889 | 23.6516667 | 78 | 912 |
| Ingkula Asundas | city | Laanemaa | Estonia | 59.0313889 | 23.6516667 | 78 | 912 |
| Ingkyula | city | Laanemaa | Estonia | 59.0313889 | 23.6516667 | 78 | 912 |
| Ingküla | city | Laanemaa | Estonia | 59.0313889 | 23.6516667 | 78 | 912 |
| Ingküla Asundas | city | Laanemaa | Estonia | 59.0313889 | 23.6516667 | 78 | 912 |
| Ingliste | city | Raplamaa | Estonia | 59.0183333 | 24.9483333 | 272 | 1050 |
| Ingliste | city | Raplamaa | Estonia | 58.8647222 | 25.2491667 | 246 | 1127 |
| Ingu | city | Harjumaa | Estonia | 59.1833333 | 24.35 | 183 | 9839 |
| Inju | city | Laane-Virumaa | Estonia | 59.2616667 | 26.3711111 | 400 | 1660 |
| Inju-Merikula | city | Laane-Virumaa | Estonia | 59.2616667 | 26.3711111 | 400 | 1660 |
| Inju-Meriküla | city | Laane-Virumaa | Estonia | 59.2616667 | 26.3711111 | 400 | 1660 |
| Intsu | city | Viljandimaa | Estonia | 58.2958333 | 25.6041667 | 328 | 1611 |
| Ioa | city | Harjumaa | Estonia | 59.4558333 | 25.1844444 | 127 | 9403 |
| Ioakyula | city | Harjumaa | Estonia | 59.3833333 | 24.35 | 108 | 8589 |
| Ioandu | city | Laane-Virumaa | Estonia | 59.5233333 | 25.8322222 | 187 | 6091 |
| Iohvi | city | Ida-Virumaa | Estonia | 59.3591667 | 27.4211111 | 183 | 4680 |
| Ionuse | city | Parnumaa | Estonia | 58.5666667 | 24.2166667 | 75 | 1526 |
| Ioye | city | Raplamaa | Estonia | 58.8994444 | 24.6202778 | 147 | 1050 |
| Ira | city | Raplamaa | Estonia | 58.9872222 | 24.7191667 | 203 | 1050 |
| Irase | city | Saaremaa | Estonia | 58.3311111 | 22.4391667 | 36 | 1100 |
| Iravere | city | Jogevamaa | Estonia | 58.8102778 | 26.6222222 | 374 | 1260 |
| Irta | city | Parnumaa | Estonia | 58.5566667 | 24.1275 | 78 | 1526 |
| Iru | city | Raplamaa | Estonia | 58.9872222 | 24.7191667 | 203 | 1050 |
| Iru | city | Harjumaa | Estonia | 59.4594444 | 24.9077778 | 157 | 8657 |
| Iruste | city | Saaremaa | Estonia | 58.51 | 23.0344444 | 19 | 1075 |
| Irvala | city | Ida-Virumaa | Estonia | 59.3516667 | 27.0225 | 154 | 4680 |
| Isaak | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Isabella | city | Hiiumaa | Estonia | 58.9466667 | 22.54 | 36 | 867 |
| Isak' | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Isakonnu | city | Raplamaa | Estonia | 58.7941667 | 24.8163889 | 206 | 1054 |
| Isaku | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Isakõnnu | city | Raplamaa | Estonia | 58.7941667 | 24.8163889 | 206 | 1054 |
| Isakʼ | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Ismenka | city | Tartumaa | Estonia | 58.2327778 | 27.4725 | 55 | 1296 |
| Issaku | city | Tartumaa | Estonia | 58.2758333 | 27.072222 | 170 | 3399 |
| Ivaski | city | Viljandimaa | Estonia | 58.4258333 | 25.3769444 | 226 | 1607 |
| Ivaste | city | Tartumaa | Estonia | 58.1625 | 26.6366667 | 482 | 2398 |
| Iye | city | Hiiumaa | Estonia | 58.8972222 | 22.3519444 | 3 | 388 |
| Iye | city | Harjumaa | Estonia | 59.4333333 | 24.5833333 | 45 | 5886 |
| Iyedre | city | Laanemaa | Estonia | 58.8630556 | 23.645 | 26 | 1069 |
| Iyeere | city | Raplamaa | Estonia | 59.0125 | 24.3658333 | 147 | 2748 |
| Iyeere | city | Harjumaa | Estonia | 59.2852778 | 25.4119444 | 203 | 9815 |
| Iyegeva | city | Jogevamaa | Estonia | 58.7466667 | 26.3938889 | 229 | 1264 |
| Iyekyula | city | Saaremaa | Estonia | 58.3283333 | 22.2761111 | 32 | 1100 |
| Iyempa | city | Saaremaa | Estonia | 58.3591667 | 22.3352778 | 82 | 1097 |
| Iyerden | city | Raplamaa | Estonia | 59.0647222 | 24.9502778 | 282 | 1047 |
| Iyetaguze | city | Laane-Virumaa | Estonia | 59.3119444 | 26.1722222 | 390 | 1657 |
| Iyeve | city | Ida-Virumaa | Estonia | 59.3591667 | 27.4211111 | 183 | 4680 |
| Iyevve | city | Ida-Virumaa | Estonia | 59.3591667 | 27.4211111 | 183 | 4680 |
| Iygela | city | Saaremaa | Estonia | 58.2622222 | 22.025 | 45 | 934 |
| Iygeva | city | Jogevamaa | Estonia | 58.7466667 | 26.3938889 | 229 | 1264 |
| Iygisu | city | Jarvamaa | Estonia | 59.175 | 25.8630556 | 337 | 1296 |
| Iykhve | city | Parnumaa | Estonia | 58.4327778 | 24.8519444 | 91 | 1530 |
| Iykhvi | city | Ida-Virumaa | Estonia | 59.3591667 | 27.4211111 | 183 | 4680 |
| Iylaste | city | Saaremaa | Estonia | 58.2958333 | 22.7977778 | 26 | 820 |
| Iyri | city | Saaremaa | Estonia | 58.4269444 | 22.7672222 | 42 | 1097 |
| Iyuga | city | Ida-Virumaa | Estonia | 59.1441667 | 27.3602778 | 170 | 4708 |
| Iyye | city | Saaremaa | Estonia | 58.3688889 | 22.5208333 | 49 | 1097 |
| Iyyemetsa | city | Ida-Virumaa | Estonia | 58.9411111 | 26.9280556 | 137 | 4481 |
| Iyyste | city | Saaremaa | Estonia | 58.595 | 22.795 | 13 | 681 |
| Iyzaku | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Izak | city | Ida-Virumaa | Estonia | 59.1013889 | 27.3080556 | 173 | 4712 |
| Izakynnu | city | Raplamaa | Estonia | 58.7941667 | 24.8163889 | 206 | 1054 |
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