Five Indiana cities found themselves among the dirtiest cities in the United States. Can you guess which ones made the list?. Indiana towns have been a hot topic lately. When it comes to Indiana, we have no shortage of small towns with a few big cities scattered in there too. Recently we have covered many of these towns in articles such as the worst small towns in Indiana, an Indiana small town that makes you feel like you are in a Hallmark movie, the best must-visit small town in Indiana, the best small town in Indiana, HGTV naming this Indiana town as the most charming in the state, and the most expensive place to live in Indiana.