13 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Jeffersonville | Clark County | 53,746 |
| Jasper | Dubois County | 17,029 |
| Jasonville | Greene County | 2,007 |
| Jonesboro | Grant County | 1,504 |
| Jimmerson Lake | 1,242 | |
| Jamestown | Boone County | 969 |
| Johnson | 389 | |
| Judah | 203 | |
| Jonesville | Bartholomew County | 180 |
| Judyville | Warren County | 136 |
| Jalapa | Blackford County | 52 |
| Jerome | 36 | |
| Judson | Parke County | 33 |