The report shows that the median rent for a one-bedroom in Philadelphia is now $1,400 (up 4.5 percent from last month). Two-bedroom median rents are up more than 12 percent compared with this time last year, at $1,570. At its position as 15th-most-expensive city in the country for renters, Philadelphia is immediately behind Providence, Rhode Island. San Francisco remains at the top of the list, with median monthly rentals at $3,420.