The foreclosure rate in the local area dropped 19 percent in March, but it remains above the national average, a real estate information firm said in a new report issued today.

The figure for Charleston, North Charleston and Summerville decreased for the month to 3.28 percent from 4.05 percent a year earlier, according to CoreLogic.

The rate is based outstanding mortgage loans.

The local number was higher than the national foreclosure rate of 2.84 percent for March.

Also in greater Charleston area, the home-loan delinquency rate decreased. About 5.93 percent of mortgages were 90 days or more behind in March compared to 6.87 percent for the same month in 2012, CoreLogic said.