A total of 17,283 new and resale houses and condos sold in Los Angeles, Riverside, San Diego, Ventura, San Bernardino and Orange counties last month.
That total represented a decrease on both a month-to-month and year-to-year basis.
Home sales in the Southern California region are down more than 10% from November 2012.
The median price paid for all new and resale houses and condos sold in the six-county region last month was $385,000, up slightly from $383,750 in October and almost 20% percent from $321,000 in November 2012.
The increase in price combined with a thin supply of homes for sale and a decrease in investor activity led to the sales decline, according to DataQuick.
Homes foreclosed on in the prior 12 months accounted for more than 6% of the Southland resale market in November. That was the same as in October and was down from more than 15% from a year earlier.
California overall saw its foreclosures sales fall to a 2007 low earlier this year.