Here's an article from the Indianapolis Business Journal that discusses how the city attracts young, educated married couples but not singles.
Never known for edgy culture, "Cities such as San Francisco, Seattle and Denver trounce Indianapolis on attracting young singles." However, it's the shorter commutes and housing affordability that separate Indiana's metropolis from the crowd. “I’ve got a house and a yard and a 10-minute commute. Try that in Chicago. You can’t,” says one recent Indy transplant.
A good article to see how young people change when they get married and how their preferences on place change as well.