I had 2-3 roommates at the last place I lived before meeting my wife. The whole of my rent/utilities bill at that time was $300-350 per month. This is in Omaha, NE.

As for minimum wage, I know at least one grocery store chain around here that hires at $12-13+ per hour for entry-level work. That's more than I was making when I was paying the $300-350 per month.