Aliso Viejo is a city in Orange County, California, United States. As of the 2000 census, Aliso Viejo population was 40,166. Aliso Viejo became Orange County's 34th city on July 1, 2001, and has been the only city in Orange County to incorporate since 2000. It borders the cities of Laguna Beach, Laguna Hills, Laguna Niguel, and Laguna Woods.
 Aliso Viejo had been an unincorporated community since around 1990, when it became Orange County's 34th City on July 1, 2001. Aliso Viejo became a City mainly in response to Aliso Viejo's Cityhood 2000 committee, which was responsible for introducing an initiative onto the ballot for the City's 2001 special election. Voters passed the initiative, making Aliso Viejo officially a City, with 93.3% in favor. The Committee was created by the City's first Mayor, Carmen Vali-Cave, who was the Committee' co-founder and president.
As of the census of 2000, there were 40,166 people, 16,147 households, and 10,689 families residing in the CDP (now a city). The population density was 1,516.0/km² (3,927.7/mi²). There were 16,608 housing units at an average density of 626.8/km² (1,624.0/mi²). The racial makeup of the CDP (now a city) is 78.16% White, 2.06% Black or African American, 0.39% Native American, 10.99% Asian, 0.22% Pacific Islander, 3.51% from other races, and 4.66% from two or more races. 11.65% of the population were Hispanic or Latino of any race.
There were 16,147 households out of which 37.7% had children under the age of 18 living with them, 52.7% were married couples living together, 10.2% had a female householder with no husband present, and 33.8% were non-families. 23.8% of all households were made up of individuals and 1.8% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.01.
In the CDP (now a city) the population is spread out with 26.1% under the age of 18, 5.5% from 18 to 24, 48.8% from 25 to 44, 16.3% from 45 to 64, and 3.4% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 93.4 males. For every 100 females age 18 and over, there were 91.4 males.
The median income for a household in the CDP (now a city) was $76,409, and the median income for a family was $84,592. Males had a median income of $61,316 versus $44,190 for females. The per capita income for the CDP (now a city) is $35,244. About 2.3% of families and 2.8% of the population were below the poverty line, including 3.5% of those under age 18 and 2.8% of those age 65 or over. |
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