Castaic is a medium-sized town located in the state of California. With a population of 18,937 people and seven associated neighborhoods, Castaic is the 330th largest community in California.

Housing costs in Castaic are among some of the highest in the nation, although real estate prices here don't compare to real estate prices in the most expensive communities in California.

Of important note, Castaic is also a town of artists. Castaic has more artists, designers and people working in media than 90% of the communities in America. This concentration of artists helps shape Castaic’s character.

Also of interest is that Castaic has more people living here who work in computers and math than 95% of the places in the US.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 10.60% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Castaic is a good choice for families with children because of several factors. Many other families with children live here, making it a place where both parents and children are more likely to develop social ties with other families. The town’s good public school district and large population of college-educated adults provide an environment conducive to academic success. Many people own their own single-family homes, providing areas for children to play and stability in the community. Finally, Castaic’s overall crime rate is lower than average for the country.

One downside of living in Castaic, however, is that residents on average have to contend with a long commute, spending on average 33.07 minutes every day commuting to work.

The education level of Castaic ranks among the highest in the nation. Of the 25-and-older adult population in Castaic, 40.72% have at least a bachelor's degree. The typical US community has just 21.84% of its adults holding a bachelor's degree or graduate degree.

The per capita income in Castaic in 2022 was $47,984, which is upper middle income relative to California, and wealthy relative to the rest of the US. This equates to an annual income of $191,936 for a family of four.

Castaic is an extremely ethnically-diverse town. The people who call Castaic home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Castaic residents report their race to be White, followed by Asian. Castaic also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 34.64% of the town’s residents. Important ancestries of people in Castaic include German, English, Irish, European, and Italian.

Foreign born people are also an important part of Castaic's cultural character, accounting for 21.11% of the town’s population.

The most common language spoken in Castaic is English. Other important languages spoken here include Spanish and Tagalog.