| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| İhsaniye | city | Istanbul Ili | Turkey | 41.2569444 | 28.3616667 | 374 | 185064 |
| İhsaniye | city | Istanbul Ili | Turkey | 41.2422222 | 28.8083333 | 347 | 184844 |
| İkitelli | city | Istanbul Ili | Turkey | 41.0791667 | 28.7825 | 383 | 185652 |
| İlyas | city | Istanbul Ili | Turkey | 40.6333333 | 29.4333333 | 692 | 90770 |
| İlyasköy | city | Istanbul Ili | Turkey | 40.6333333 | 29.4333333 | 692 | 90770 |
| İmrahor | city | Istanbul Ili | Turkey | 41.2186111 | 28.7438889 | 249 | 185185 |
| İmranlı | city | Istanbul Ili | Turkey | 41.15 | 29.7333333 | 242 | 127242 |
| İmrendere | city | Istanbul Ili | Turkey | 41.1166667 | 29.6 | 429 | 185535 |
| İmrendere Köyü | city | Istanbul Ili | Turkey | 41.1166667 | 29.6 | 429 | 185535 |
| İmrenli | city | Istanbul Ili | Turkey | 41.15 | 29.7333333 | 242 | 127242 |
| İmrohor | city | Istanbul Ili | Turkey | 41.2186111 | 28.7438889 | 249 | 185185 |
| İnceğiz | city | Istanbul Ili | Turkey | 41.1875 | 28.4075 | 272 | 185301 |
| İncirköy | city | Istanbul Ili | Turkey | 41.1166667 | 29.1 | 328 | 163793 |
| İriva | city | Istanbul Ili | Turkey | 41.2244444 | 29.22 | 193 | 99166 |
| İsa | city | Istanbul Ili | Turkey | 41.1166667 | 29.8166667 | 22 | 166883 |
| İsaköy | city | Istanbul Ili | Turkey | 41.1166667 | 29.8166667 | 22 | 166883 |
| İstanbul | city | Istanbul Ili | Turkey | 41.0186111 | 28.9647222 | 78 | 106552 |
| İstinye | city | Istanbul Ili | Turkey | 41.1 | 29.05 | 3 | 154510 |
| İstiranca | city | Istanbul Ili | Turkey | 41.4133333 | 28.1891667 | 754 | 102626 |
| İzzettin | city | Istanbul Ili | Turkey | 41.1805556 | 28.5 | 108 | 185301 |
| İzzettinköy | city | Istanbul Ili | Turkey | 41.1805556 | 28.5 | 108 | 185301 |
| İçmeler | city | Istanbul Ili | Turkey | 40.8463889 | 29.3088889 | 160 | 28976 |
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