Mortgage rates fell last week, with rates for 30-year fixed mortgages declining to 5.92 percent, down from 6.03 percent the week prior, according to the Zillow Mortgage Rate Monitor, compiled by leading real estate Web site Zillow.com®.

Rates for 15-year fixed mortgages decreased to 5.69 percent, down from 5.76 percent and 5-1 adjustable rate mortgages rose to 5.87 percent from 5.85 percent.

Rates for 30-year fixed mortgages fell even further on Monday evening with the average rate on Zillow Mortgage Marketplace at 5.71 percent.

At a state level, the 30-year fixed mortgage rate in Pennsylvania saw the biggest decrease, falling from 6.06 percent to 5.88 percent. Rates on 30-year fixed mortgages were lowest in the states of Oregon (5.79%) and Georgia (5.81%) and, while Missouri (6.11%) and South Carolina (6.05%) had the highest rates.