Aliso Viejo, California

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.

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