According to Statistics Sweden, more than 150,000 people lived last year in overcrowded conditions in a metropolitan area. To be overcrowded, a family must have three or more people sharing one bedroom.
The statistics agency said more than half of those living in tight quarters were between 16 to 34 years old, and that their numbers have increased steadily over the past five years.
Worst hit is the capital and its surrounding suburbs. Of the 10 municipalities that have the least living space per person, eight of them are found in the greater Stockholm region.
Nima Adan, 17, lives in Gothenburg where she shares a bedroom with her three brothers.
"We are six altogether in the family, we have only two bedrooms," she told Swedish Radio's local channel in Gothenburg. "It's really hard for me too and I'm the only girl."