As of the census of 2000, there were 10,899 people, 3,816 households, and 2,976 families residing in the CDP. The population density was 1,492.2/km² (3,858.8/mi²). There were 3,873 housing units at an average density of 530.3/km² (1,371.2/mi²). The racial makeup of the CDP was 74.38% White, 1.92% Black or African American, 0.29% Native American, 14.96% Asian, 0.28% Pacific Islander, 3.38% from other races, and 4.78% from two or more races. 10.85% of the population were Hispanic or Latino of any race.

There were 3,816 households out of which 49.9% had children under the age of 18 living with them, 69.2% were married couples living together, 5.9% had a female householder with no husband present, and 22.0% were non-families. 16.3% of all households were made up of individuals and 0.7% had someone living alone who was 65 years of age or older. The average household size was 2.86 and the average family size was 3.27.

Content derived from various sources including Wikipedia, and City/Village of Foothill Ranch.