Most of the city is located in the eastern hillside of the San Joaquin Hills. According to the Census Bureau, the area of the city is almost 18 m². Aliso Viejo is one of several cities bordering the Aliso and Wood Canyons Regional Park. The river Aliso Creek marks in some places the city border with Laguna Niguel in the south and the stream Wood Canyon Creek in the western border of the city.

The area originally planned was once part of a 100 km² ranch, the Moulton Ranch. This area was acquired by the Moulton family in the 1890s by Juan Avila. In 1842, the Mexican government granted the area. Little by little, parts of the ranch were sold so that the cities of Leisure World (now Laguna Woods), Laguna Hills and Laguna Niguel could be created. In 1976, the Mission Viejo Company bought the remaining 27 km² of the Moulton Ranch to build a new community. In their designs, the planners planned 20,000 houses for 50,000 inhabitants. The drafts were approved by the County in 1979. First houses were offered for sale in March 1982, the first family moved in November of the same year. As part of the project, 10.5 km² of land was dedicated to the county as part of the Aliso and Wood Canyons Wilderness Park. A further 3.2 km² has been reserved for use as a neighborhood park, recreation or other public use. To manage these uses, the Aliso Viejo Community Association (AVCA) was founded in 1982.

Aliso Viejo was the first planned California municipality to have the same number of new jobs created, as well as the planned recruitment of people with work potential. Pacific Park, the Aliso Viejo's 3.5 km² city and commercial center, was expected to create more than 22,000 jobs. All of the city's houses are within 2.5 km of Pacific Park. This distance was deliberately chosen to promote work close to home.

communal

Aliso Viejo has been a community-free village since 1979. It was not until 2001 that the city was formed after the Aliso Viejo Cityhood 2000 Committee had called for a corresponding citizens' vote. In the election, 93.3% of voters voted in favor of a congregation. The co-founder and president of the committee, Carmen Vali-Cave, became the city's first mayor.

The city seal was introduced with the Municipality. It shows several mountains, a sunset, a tree and several buildings. It also shows the letter "July 2001" to remind you of Aliso Viejo.

According to the 2010 census, the 47,823 inhabitants distributed to 18,204 households. The population density was 2,668.7 inhabitants/km². 72% were white, 2% were African-American, 0.3% Indian, 14.6% Asian Americans, 5.1% said they were different, and 5.7% said they were different. 17.1% of the population consisted of Hispanics or Latinos.

In 2010, children under the age of 18 and 11.1% of households lived in 39% of households with at least 65 years of age. 66.6% of households were family households (consisting of married couples with or without offspring or one parent with offspring). The average size of a household was 2.6 people and the average family size was 3.16.

28.2% of the population were under 20 years of age, 31.3% were between 20 and 39 years old, 31.8% were between 40 and 59 years old and 8.7% were at least 60 years old. The mean age was 35.1 years. 48.1% of the population were male and 51.9% female.

In 2017, the median household income was $106,353. 4.6% of the population lived below the poverty line.

Aliso Viejo is a general law city under American law. Thus, the city only possesses the powers expressly granted by the state. The city also has a representation of the city. Day-to-day business is run by a chief professional city manager, who is controlled by a voluntary council. Aliso Viejo City Council has five members. Each year the Council elects its next mayor and deputy mayor.

The city council currently consists of the mayor David C. Harrington, the Mayor Pro-Tem Phillip Tsunoda and Ross Chun, Mike Munzing and William Phillips.

Representation in the State and the State

Aliso Viejo will be elected to the Californian Parliament in the 36th Senate district by Republican Patricia Bates and 73. Lower House District by Republican Bill Brough.

In the House of Representatives of the United States, the city will be in the 48th century. Congress district represented by Republican Dana Rohrabacher.

• The Aliso Viejo Town Center is home to a cinema, a variety of restaurants and shops. The Town Center is also the center for public concerts and events with its Grand Park.
• The Aliso Viejo Library is a branch of the Orange County Library and has been available to citizens since January 31, 1998.

• The Aliso Viejo Golf Course was designed by Nicklaus Design in 1999 and converted into the Aliso Viejo Country Club in 2005.

• The Soka University opened on May 3, 2001. For $250 million, a 18-building campus of 0.5 km² was built. The private university sees itself in the tradition of Buddhism.
• The Soka Performing Arts Center is a 1,000 seat concert hall opened in September 2011. The acoustics were designed by Yasuhisa Toyota, who also designed the acoustic design in the Elbphilharmonie in Hamburg.
• The Renaissance ClubSport Resort is a resort of the Marriott chain, which opened in July 2008. It cost more than $65 million at its inception to meet growing demand for a healthy lifestyle.

Microsemi, the pharmaceutical company Valeant and the IT services company UST Global are headquartered in Aliso Viejo.

The city is part of the Capistrano Unified School Districts and houses the following schools:

primary schools

• Canyon Vista Elementary School
• Don Juan Avila Elementary School
• Oak Grove Elementary School
• Wood Canyon Elementary School

middle schools

• Aliso Viejo Middle School
• Don Juan Avila Middle School

high school

• Aliso Niguel High School

Sons and daughters of the city

• Ryan Coiner, former US soccer player with Arminia Bielefeld II, 1. FC Union Berlin and Holstein Kiel

• McKayla Maroney, a former American art gymnast and Olympic champion, has become famous through a memes

local personalities

• Farzad Bonyadi, US poker player and three-time Bracelet winner of the World Series of Poker
• Ryan Getzlaf, Canadian ice hockey player
• Kyla Ross, former US artistic gymnast and Olympic champion
• Ashley Wagner, American figure skater
• Alicia Leigh Willis, American actress