 7,302 people (90.5% of the population) lived in owner-occupied housing units and 765 people (9.5%) lived in rental housing units.According to the 2010 United States Census, Rolling Hills Estates had a median household income of $143,958, with 3.5% of the population living below the federal poverty line.At the 2000 census there were 7,676 people in 2,806 households, including 2,334 families, in the city.