Young people in Middle America don’t go running home to mom and dad.

Across America, more than one in three people ages 18-34 still lives at home. In fact, the number of young people living at home is the highest it’s been in 75 years, according to data from Trulia.com.

In some cities, those numbers are far greater. Nearly 45% of millennials in Miami live at home, according to recent data from apartment rental company ABODO.com — making it the city with the highest percentage of people 18-34 living at home.

The reason: Miami’s apartments are expensive — people from around the world buy there, which drives prices up — and the millennial unemployment rate is high and wages low. “If you are a millennial and you live in Miami, you don’t have the money to pay $2000 in rent,” says Sam Radbil, a spokesperson for Abodo. The high rent in Northeastern and California cities is the main reason they’re on this map as well, he adds.

Meanwhile, millennials in a large portion of Middle America are living on their own. That’s largely because rents tend to be significantly cheaper than if you live in large coastal cities, he says.