HousingWire reports that double-digit declines in the mortgage delinquency rate for all 50 states will occur through next year, according to TransUnion. The company expects the national mortgage delinquency rate to fall by about one-fifth to 4.98 percent by the end of 2011. The company projects the rate at 6.21 percent at the end of 2010, representing a nearly 10 percent decrease from the prior year. Slowly improving employment figures and continued stabilization in housing prices are expected to fuel the declining delinquency rates.