By Dillon Fuhrman, NBC News

SAN DIEGO (NBC, KYMA) – A new report is showing why an already expensive San Diego is costing more and more to live in.

Housing advocates say there’s just not enough housing available, especially for working families.

“Housing is very expensive in San Diego,” said Alan Gin, economic professor with the Knauss School of Business from the University of San Diego.

San Diego is among the most expensive cities in the country to either rent or buy a home, according to Gin.

A recent report from the San Diego Housing Federation and the California Housing Partnership shows evidence of that.

“San Diegans need to make about three times the minimum wage to afford rent,” said Danielle Mazella with the California Housing Partnership.

According to the latest “Affordable Housing Needs Report,” tripling the minimum wage means you’d need to earn a little more than $50 an hour just to be able to afford the average two-bedroom apartment here in San Diego.