| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Yankee Town | city | Indiana | United States | 39.69556 | -84.98556 | 875 | 2368 |
| Yankeetown | city | Indiana | United States | 37.9175 | -87.29778 | 403 | 4083 |
| Yeagers Curve | city | Indiana | United States | 40.69861 | -87.43917 | 751 | 906 |
| Yeddo | city | Indiana | United States | 40.01139 | -87.26 | 698 | 1116 |
| Yellow Bank | city | Indiana | United States | 39.4375 | -85.06917 | 698 | 2352 |
| Yellowbanks | city | Indiana | United States | 41.32167 | -85.67889 | 875 | 7003 |
| Yellowstone | city | Indiana | United States | 38.99889 | -86.3425 | 751 | 2176 |
| Yenne | city | Indiana | United States | 38.54778 | -86.79361 | 626 | 1391 |
| Yeoman | city | Indiana | United States | 40.66778 | -86.72417 | 662 | 4759 |
| Yockey | city | Indiana | United States | 38.78806 | -86.49306 | 649 | 7217 |
| Yoder | city | Indiana | United States | 40.93111 | -85.17667 | 797 | 4247 |
| York | city | Indiana | United States | 41.68833 | -84.8225 | 1046 | 2045 |
| Yorktown | city | Indiana | United States | 40.17361 | -85.49417 | 898 | 21049 |
| Yorkville | city | Indiana | United States | 39.20444 | -84.9675 | 862 | 4726 |
| Young | city | Indiana | United States | 39.61028 | -86.3375 | 751 | 16994 |
| Young | city | Indiana | United States | 39.07389 | -86.31667 | 577 | 1309 |
| Young America | city | Indiana | United States | 40.56861 | -86.34667 | 751 | 2401 |
| Youngs Corner | city | Indiana | United States | 39.35417 | -85.0575 | 898 | 2212 |
| Youngs Creek | city | Indiana | United States | 38.47667 | -86.49556 | 551 | 2215 |
| Youngstown | city | Indiana | United States | 39.36222 | -87.38222 | 574 | 4694 |
| Yountsville | city | Indiana | United States | 40.02472 | -86.98 | 728 | 3734 |
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