So the good news is the real estate market is really, officially on the mend. The bad news is that means more renters are getting squeezed, especially those who might have lost a home to foreclosure.

According to a new annual report from Harvard’s Joint Center for Housing Studies, more than 11 million spend more than half of their income on rent, and more than 21 million families pay 30% of their income just to keep a roof over their heads.

Homeownership has been falling at an unprecedented rate for the past decade. Last year, fewer than two-thirds of Americans lived in homes they owned. The problem is that it’s getting increasingly hard for today’s growing number of renters to find places to live they can actually afford.